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    <link:label id="lab_natr_OtherCountriesMember_A491D1C41D16AD05B141716B13DEDFA1_documentation_en-US" xlink:label="lab_natr_OtherCountriesMember_A491D1C41D16AD05B141716B13DEDFA1" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents information related to all other international countries.</link:label>
    <link:loc xlink:href="natr-20190630.xsd#natr_OtherCountriesMember" xlink:label="loc_natr_OtherCountriesMember_A491D1C41D16AD05B141716B13DEDFA1" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_natr_OtherCountriesMember_A491D1C41D16AD05B141716B13DEDFA1" xlink:to="lab_natr_OtherCountriesMember_A491D1C41D16AD05B141716B13DEDFA1" xlink:type="arc" />
    <link:label id="lab_us-gaap_NonUsMember_95CC116E92F1F2C91A58716B13DE8B9A_terseLabel_en-US" xlink:label="lab_us-gaap_NonUsMember_95CC116E92F1F2C91A58716B13DE8B9A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other</link:label>
    <link:label id="lab_us-gaap_NonUsMember_95CC116E92F1F2C91A58716B13DE8B9A_label_en-US" xlink:label="lab_us-gaap_NonUsMember_95CC116E92F1F2C91A58716B13DE8B9A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Non-US [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NonUsMember" xlink:label="loc_us-gaap_NonUsMember_95CC116E92F1F2C91A58716B13DE8B9A" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NonUsMember_95CC116E92F1F2C91A58716B13DE8B9A" xlink:to="lab_us-gaap_NonUsMember_95CC116E92F1F2C91A58716B13DE8B9A" xlink:type="arc" />
    <link:label id="lab_us-gaap_StatementBusinessSegmentsAxis_034C3C7666BBF507E359716B13DE0797_terseLabel_en-US" xlink:label="lab_us-gaap_StatementBusinessSegmentsAxis_034C3C7666BBF507E359716B13DE0797" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Segments [Axis]</link:label>
    <link:label id="lab_us-gaap_StatementBusinessSegmentsAxis_034C3C7666BBF507E359716B13DE0797_label_en-US" xlink:label="lab_us-gaap_StatementBusinessSegmentsAxis_034C3C7666BBF507E359716B13DE0797" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Segments [Axis]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementBusinessSegmentsAxis" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_034C3C7666BBF507E359716B13DE0797" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_034C3C7666BBF507E359716B13DE0797" xlink:to="lab_us-gaap_StatementBusinessSegmentsAxis_034C3C7666BBF507E359716B13DE0797" xlink:type="arc" />
    <link:label id="lab_us-gaap_SegmentDomain_AC7896456FBF81464C28716B13DF1ED8_terseLabel_en-US" xlink:label="lab_us-gaap_SegmentDomain_AC7896456FBF81464C28716B13DF1ED8" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Segments [Domain]</link:label>
    <link:label id="lab_us-gaap_SegmentDomain_AC7896456FBF81464C28716B13DF1ED8_label_en-US" xlink:label="lab_us-gaap_SegmentDomain_AC7896456FBF81464C28716B13DF1ED8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Segments [Domain]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SegmentDomain" xlink:label="loc_us-gaap_SegmentDomain_AC7896456FBF81464C28716B13DF1ED8" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SegmentDomain_AC7896456FBF81464C28716B13DF1ED8" xlink:to="lab_us-gaap_SegmentDomain_AC7896456FBF81464C28716B13DF1ED8" xlink:type="arc" />
    <link:label id="lab_natr_NSPAmericasNSPRussiaCentralandEasternEuropeandNSPChinaMember_2D7A12EADBC1723E0AA7716B13DFA11F_terseLabel_en-US" xlink:label="lab_natr_NSPAmericasNSPRussiaCentralandEasternEuropeandNSPChinaMember_2D7A12EADBC1723E0AA7716B13DFA11F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">NSP Americas; NSP Russia, Central and Eastern Europe; and NSP China</link:label>
    <link:label id="lab_natr_NSPAmericasNSPRussiaCentralandEasternEuropeandNSPChinaMember_2D7A12EADBC1723E0AA7716B13DFA11F_label_en-US" xlink:label="lab_natr_NSPAmericasNSPRussiaCentralandEasternEuropeandNSPChinaMember_2D7A12EADBC1723E0AA7716B13DFA11F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">NSP Americas; NSP Russia, Central and Eastern Europe; and NSP China [Member]</link:label>
    <link:label id="lab_natr_NSPAmericasNSPRussiaCentralandEasternEuropeandNSPChinaMember_2D7A12EADBC1723E0AA7716B13DFA11F_documentation_en-US" xlink:label="lab_natr_NSPAmericasNSPRussiaCentralandEasternEuropeandNSPChinaMember_2D7A12EADBC1723E0AA7716B13DFA11F" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">NSP Americas; NSP Russia, Central and Eastern Europe; and NSP China [Member]</link:label>
    <link:loc xlink:href="natr-20190630.xsd#natr_NSPAmericasNSPRussiaCentralandEasternEuropeandNSPChinaMember" xlink:label="loc_natr_NSPAmericasNSPRussiaCentralandEasternEuropeandNSPChinaMember_2D7A12EADBC1723E0AA7716B13DFA11F" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_natr_NSPAmericasNSPRussiaCentralandEasternEuropeandNSPChinaMember_2D7A12EADBC1723E0AA7716B13DFA11F" xlink:to="lab_natr_NSPAmericasNSPRussiaCentralandEasternEuropeandNSPChinaMember_2D7A12EADBC1723E0AA7716B13DFA11F" xlink:type="arc" />
    <link:label id="lab_natr_SynergyWorldWideMember_1F14B88D25ADBB78DDB1716B13E0CEE2_terseLabel_en-US" xlink:label="lab_natr_SynergyWorldWideMember_1F14B88D25ADBB78DDB1716B13E0CEE2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Synergy WorldWide</link:label>
    <link:label id="lab_natr_SynergyWorldWideMember_1F14B88D25ADBB78DDB1716B13E0CEE2_label_en-US" xlink:label="lab_natr_SynergyWorldWideMember_1F14B88D25ADBB78DDB1716B13E0CEE2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Synergy WorldWide [Member]</link:label>
    <link:label id="lab_natr_SynergyWorldWideMember_1F14B88D25ADBB78DDB1716B13E0CEE2_documentation_en-US" xlink:label="lab_natr_SynergyWorldWideMember_1F14B88D25ADBB78DDB1716B13E0CEE2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the synergy worldwide brand, a reportable segment of the entity which offers marketing plans, distributor compensation plans and product formulations.</link:label>
    <link:loc xlink:href="natr-20190630.xsd#natr_SynergyWorldWideMember" xlink:label="loc_natr_SynergyWorldWideMember_1F14B88D25ADBB78DDB1716B13E0CEE2" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_natr_SynergyWorldWideMember_1F14B88D25ADBB78DDB1716B13E0CEE2" xlink:to="lab_natr_SynergyWorldWideMember_1F14B88D25ADBB78DDB1716B13E0CEE2" xlink:type="arc" />
    <link:label id="lab_natr_AsiaSegmentMember_29C68FB7A65DED79642071B9B5907C31_terseLabel_en-US" xlink:label="lab_natr_AsiaSegmentMember_29C68FB7A65DED79642071B9B5907C31" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Asia</link:label>
    <link:label id="lab_natr_AsiaSegmentMember_29C68FB7A65DED79642071B9B5907C31_label_en-US" xlink:label="lab_natr_AsiaSegmentMember_29C68FB7A65DED79642071B9B5907C31" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Asia Segment [Member]</link:label>
    <link:label id="lab_natr_AsiaSegmentMember_29C68FB7A65DED79642071B9B5907C31_documentation_en-US" xlink:label="lab_natr_AsiaSegmentMember_29C68FB7A65DED79642071B9B5907C31" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Asia Segment [Member]</link:label>
    <link:loc xlink:href="natr-20190630.xsd#natr_AsiaSegmentMember" xlink:label="loc_natr_AsiaSegmentMember_29C68FB7A65DED79642071B9B5907C31" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_natr_AsiaSegmentMember_29C68FB7A65DED79642071B9B5907C31" xlink:to="lab_natr_AsiaSegmentMember_29C68FB7A65DED79642071B9B5907C31" xlink:type="arc" />
    <link:label id="lab_natr_EuropeSegmentMember_AC3A6FAC6465E670CF66719A638B0624_terseLabel_en-US" xlink:label="lab_natr_EuropeSegmentMember_AC3A6FAC6465E670CF66719A638B0624" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Europe</link:label>
    <link:label id="lab_natr_EuropeSegmentMember_AC3A6FAC6465E670CF66719A638B0624_label_en-US" xlink:label="lab_natr_EuropeSegmentMember_AC3A6FAC6465E670CF66719A638B0624" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Europe Segment [Member]</link:label>
    <link:label id="lab_natr_EuropeSegmentMember_AC3A6FAC6465E670CF66719A638B0624_documentation_en-US" xlink:label="lab_natr_EuropeSegmentMember_AC3A6FAC6465E670CF66719A638B0624" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Europe Segment [Member]</link:label>
    <link:loc xlink:href="natr-20190630.xsd#natr_EuropeSegmentMember" xlink:label="loc_natr_EuropeSegmentMember_AC3A6FAC6465E670CF66719A638B0624" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_natr_EuropeSegmentMember_AC3A6FAC6465E670CF66719A638B0624" xlink:to="lab_natr_EuropeSegmentMember_AC3A6FAC6465E670CF66719A638B0624" xlink:type="arc" />
    <link:label id="lab_natr_NorthAmericaSegmentMember_6290D5371F33211CEC4D719AC15D377A_terseLabel_en-US" xlink:label="lab_natr_NorthAmericaSegmentMember_6290D5371F33211CEC4D719AC15D377A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">North America</link:label>
    <link:label id="lab_natr_NorthAmericaSegmentMember_6290D5371F33211CEC4D719AC15D377A_label_en-US" xlink:label="lab_natr_NorthAmericaSegmentMember_6290D5371F33211CEC4D719AC15D377A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">North America Segment [Member]</link:label>
    <link:label id="lab_natr_NorthAmericaSegmentMember_6290D5371F33211CEC4D719AC15D377A_documentation_en-US" xlink:label="lab_natr_NorthAmericaSegmentMember_6290D5371F33211CEC4D719AC15D377A" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">North America Segment [Member]</link:label>
    <link:loc xlink:href="natr-20190630.xsd#natr_NorthAmericaSegmentMember" xlink:label="loc_natr_NorthAmericaSegmentMember_6290D5371F33211CEC4D719AC15D377A" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_natr_NorthAmericaSegmentMember_6290D5371F33211CEC4D719AC15D377A" xlink:to="lab_natr_NorthAmericaSegmentMember_6290D5371F33211CEC4D719AC15D377A" xlink:type="arc" />
    <link:label id="lab_natr_LatinAmericaAndOtherSegmentMember_09BCE296E767AAC827AA719B2CAAEB72_terseLabel_en-US" xlink:label="lab_natr_LatinAmericaAndOtherSegmentMember_09BCE296E767AAC827AA719B2CAAEB72" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Latin America and Other</link:label>
    <link:label id="lab_natr_LatinAmericaAndOtherSegmentMember_09BCE296E767AAC827AA719B2CAAEB72_label_en-US" xlink:label="lab_natr_LatinAmericaAndOtherSegmentMember_09BCE296E767AAC827AA719B2CAAEB72" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Latin America And Other Segment [Member]</link:label>
    <link:label id="lab_natr_LatinAmericaAndOtherSegmentMember_09BCE296E767AAC827AA719B2CAAEB72_documentation_en-US" xlink:label="lab_natr_LatinAmericaAndOtherSegmentMember_09BCE296E767AAC827AA719B2CAAEB72" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Latin America And Other Segment [Member]</link:label>
    <link:loc xlink:href="natr-20190630.xsd#natr_LatinAmericaAndOtherSegmentMember" xlink:label="loc_natr_LatinAmericaAndOtherSegmentMember_09BCE296E767AAC827AA719B2CAAEB72" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_natr_LatinAmericaAndOtherSegmentMember_09BCE296E767AAC827AA719B2CAAEB72" xlink:to="lab_natr_LatinAmericaAndOtherSegmentMember_09BCE296E767AAC827AA719B2CAAEB72" xlink:type="arc" />
    <link:label id="lab_srt_ProductOrServiceAxis_78B8B104275DBEF0F950716B13E015F9_terseLabel_en-US" xlink:label="lab_srt_ProductOrServiceAxis_78B8B104275DBEF0F950716B13E015F9" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Product and Service [Axis]</link:label>
    <link:label id="lab_srt_ProductOrServiceAxis_78B8B104275DBEF0F950716B13E015F9_label_en-US" xlink:label="lab_srt_ProductOrServiceAxis_78B8B104275DBEF0F950716B13E015F9" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Product and Service [Axis]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_ProductOrServiceAxis" xlink:label="loc_srt_ProductOrServiceAxis_78B8B104275DBEF0F950716B13E015F9" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_ProductOrServiceAxis_78B8B104275DBEF0F950716B13E015F9" xlink:to="lab_srt_ProductOrServiceAxis_78B8B104275DBEF0F950716B13E015F9" xlink:type="arc" />
    <link:label id="lab_srt_ProductsAndServicesDomain_E2CE462191766E742C6D716B13E12BA3_terseLabel_en-US" xlink:label="lab_srt_ProductsAndServicesDomain_E2CE462191766E742C6D716B13E12BA3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Product and Service [Domain]</link:label>
    <link:label id="lab_srt_ProductsAndServicesDomain_E2CE462191766E742C6D716B13E12BA3_label_en-US" xlink:label="lab_srt_ProductsAndServicesDomain_E2CE462191766E742C6D716B13E12BA3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Product and Service [Domain]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_ProductsAndServicesDomain" xlink:label="loc_srt_ProductsAndServicesDomain_E2CE462191766E742C6D716B13E12BA3" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_ProductsAndServicesDomain_E2CE462191766E742C6D716B13E12BA3" xlink:to="lab_srt_ProductsAndServicesDomain_E2CE462191766E742C6D716B13E12BA3" xlink:type="arc" />
    <link:label id="lab_natr_GeneralHealthProductsMember_D130D50A51973D0F942B716B13E1D779_terseLabel_en-US" xlink:label="lab_natr_GeneralHealthProductsMember_D130D50A51973D0F942B716B13E1D779" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">General health</link:label>
    <link:label id="lab_natr_GeneralHealthProductsMember_D130D50A51973D0F942B716B13E1D779_label_en-US" xlink:label="lab_natr_GeneralHealthProductsMember_D130D50A51973D0F942B716B13E1D779" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">General Health Products [Member]</link:label>
    <link:label id="lab_natr_GeneralHealthProductsMember_D130D50A51973D0F942B716B13E1D779_documentation_en-US" xlink:label="lab_natr_GeneralHealthProductsMember_D130D50A51973D0F942B716B13E1D779" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents information pertaining to general health products of the entity.</link:label>
    <link:loc xlink:href="natr-20190630.xsd#natr_GeneralHealthProductsMember" xlink:label="loc_natr_GeneralHealthProductsMember_D130D50A51973D0F942B716B13E1D779" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_natr_GeneralHealthProductsMember_D130D50A51973D0F942B716B13E1D779" xlink:to="lab_natr_GeneralHealthProductsMember_D130D50A51973D0F942B716B13E1D779" xlink:type="arc" />
    <link:label id="lab_natr_ImmunityProductsMember_9236ADA7984D550B0008716B13E187EE_terseLabel_en-US" xlink:label="lab_natr_ImmunityProductsMember_9236ADA7984D550B0008716B13E187EE" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Immune</link:label>
    <link:label id="lab_natr_ImmunityProductsMember_9236ADA7984D550B0008716B13E187EE_label_en-US" xlink:label="lab_natr_ImmunityProductsMember_9236ADA7984D550B0008716B13E187EE" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Immunity Products [Member]</link:label>
    <link:label id="lab_natr_ImmunityProductsMember_9236ADA7984D550B0008716B13E187EE_documentation_en-US" xlink:label="lab_natr_ImmunityProductsMember_9236ADA7984D550B0008716B13E187EE" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents information pertaining to immunity products of the entity.</link:label>
    <link:loc xlink:href="natr-20190630.xsd#natr_ImmunityProductsMember" xlink:label="loc_natr_ImmunityProductsMember_9236ADA7984D550B0008716B13E187EE" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_natr_ImmunityProductsMember_9236ADA7984D550B0008716B13E187EE" xlink:to="lab_natr_ImmunityProductsMember_9236ADA7984D550B0008716B13E187EE" xlink:type="arc" />
    <link:label id="lab_natr_CardiovascularProductsMember_01FE39B4DF5CD8EFEE85716B13E2D0BB_terseLabel_en-US" xlink:label="lab_natr_CardiovascularProductsMember_01FE39B4DF5CD8EFEE85716B13E2D0BB" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cardiovascular</link:label>
    <link:label id="lab_natr_CardiovascularProductsMember_01FE39B4DF5CD8EFEE85716B13E2D0BB_label_en-US" xlink:label="lab_natr_CardiovascularProductsMember_01FE39B4DF5CD8EFEE85716B13E2D0BB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cardiovascular Products [Member]</link:label>
    <link:label id="lab_natr_CardiovascularProductsMember_01FE39B4DF5CD8EFEE85716B13E2D0BB_documentation_en-US" xlink:label="lab_natr_CardiovascularProductsMember_01FE39B4DF5CD8EFEE85716B13E2D0BB" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents information pertaining to cardiovascular products of the entity.</link:label>
    <link:loc xlink:href="natr-20190630.xsd#natr_CardiovascularProductsMember" xlink:label="loc_natr_CardiovascularProductsMember_01FE39B4DF5CD8EFEE85716B13E2D0BB" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_natr_CardiovascularProductsMember_01FE39B4DF5CD8EFEE85716B13E2D0BB" xlink:to="lab_natr_CardiovascularProductsMember_01FE39B4DF5CD8EFEE85716B13E2D0BB" xlink:type="arc" />
    <link:label id="lab_natr_DigestiveProductsMember_9989AF96685A81B71E67716B13E2F3BB_terseLabel_en-US" xlink:label="lab_natr_DigestiveProductsMember_9989AF96685A81B71E67716B13E2F3BB" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Digestive</link:label>
    <link:label id="lab_natr_DigestiveProductsMember_9989AF96685A81B71E67716B13E2F3BB_label_en-US" xlink:label="lab_natr_DigestiveProductsMember_9989AF96685A81B71E67716B13E2F3BB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Digestive Products [Member]</link:label>
    <link:label id="lab_natr_DigestiveProductsMember_9989AF96685A81B71E67716B13E2F3BB_documentation_en-US" xlink:label="lab_natr_DigestiveProductsMember_9989AF96685A81B71E67716B13E2F3BB" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents information pertaining to digestive products of the entity.</link:label>
    <link:loc xlink:href="natr-20190630.xsd#natr_DigestiveProductsMember" xlink:label="loc_natr_DigestiveProductsMember_9989AF96685A81B71E67716B13E2F3BB" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_natr_DigestiveProductsMember_9989AF96685A81B71E67716B13E2F3BB" xlink:to="lab_natr_DigestiveProductsMember_9989AF96685A81B71E67716B13E2F3BB" xlink:type="arc" />
    <link:label id="lab_natr_PersonalCareProductsMember_A82E1DB4AB8B09AC7B53716B13E21FD3_terseLabel_en-US" xlink:label="lab_natr_PersonalCareProductsMember_A82E1DB4AB8B09AC7B53716B13E21FD3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Personal care</link:label>
    <link:label id="lab_natr_PersonalCareProductsMember_A82E1DB4AB8B09AC7B53716B13E21FD3_label_en-US" xlink:label="lab_natr_PersonalCareProductsMember_A82E1DB4AB8B09AC7B53716B13E21FD3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Personal Care Products [Member]</link:label>
    <link:label id="lab_natr_PersonalCareProductsMember_A82E1DB4AB8B09AC7B53716B13E21FD3_documentation_en-US" xlink:label="lab_natr_PersonalCareProductsMember_A82E1DB4AB8B09AC7B53716B13E21FD3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the information pertaining to personal care products of the entity.</link:label>
    <link:loc xlink:href="natr-20190630.xsd#natr_PersonalCareProductsMember" xlink:label="loc_natr_PersonalCareProductsMember_A82E1DB4AB8B09AC7B53716B13E21FD3" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_natr_PersonalCareProductsMember_A82E1DB4AB8B09AC7B53716B13E21FD3" xlink:to="lab_natr_PersonalCareProductsMember_A82E1DB4AB8B09AC7B53716B13E21FD3" xlink:type="arc" />
    <link:label id="lab_natr_WeightManagementProductsMember_457C0DD5D84D7F1CC1AC716B13E2DC30_terseLabel_en-US" xlink:label="lab_natr_WeightManagementProductsMember_457C0DD5D84D7F1CC1AC716B13E2DC30" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Weight management</link:label>
    <link:label id="lab_natr_WeightManagementProductsMember_457C0DD5D84D7F1CC1AC716B13E2DC30_label_en-US" xlink:label="lab_natr_WeightManagementProductsMember_457C0DD5D84D7F1CC1AC716B13E2DC30" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Weight Management Products [Member]</link:label>
    <link:label id="lab_natr_WeightManagementProductsMember_457C0DD5D84D7F1CC1AC716B13E2DC30_documentation_en-US" xlink:label="lab_natr_WeightManagementProductsMember_457C0DD5D84D7F1CC1AC716B13E2DC30" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents information pertaining to weight management products of the entity.</link:label>
    <link:loc xlink:href="natr-20190630.xsd#natr_WeightManagementProductsMember" xlink:label="loc_natr_WeightManagementProductsMember_457C0DD5D84D7F1CC1AC716B13E2DC30" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_natr_WeightManagementProductsMember_457C0DD5D84D7F1CC1AC716B13E2DC30" xlink:to="lab_natr_WeightManagementProductsMember_457C0DD5D84D7F1CC1AC716B13E2DC30" xlink:type="arc" />
    <link:label id="lab_us-gaap_SegmentReportingInformationLineItems_B1A80CF1534EA489D8CC716B13E21F1E_terseLabel_en-US" xlink:label="lab_us-gaap_SegmentReportingInformationLineItems_B1A80CF1534EA489D8CC716B13E21F1E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Segment information</link:label>
    <link:label id="lab_us-gaap_SegmentReportingInformationLineItems_B1A80CF1534EA489D8CC716B13E21F1E_label_en-US" xlink:label="lab_us-gaap_SegmentReportingInformationLineItems_B1A80CF1534EA489D8CC716B13E21F1E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Segment Reporting Information [Line Items]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SegmentReportingInformationLineItems" xlink:label="loc_us-gaap_SegmentReportingInformationLineItems_B1A80CF1534EA489D8CC716B13E21F1E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_B1A80CF1534EA489D8CC716B13E21F1E" xlink:to="lab_us-gaap_SegmentReportingInformationLineItems_B1A80CF1534EA489D8CC716B13E21F1E" xlink:type="arc" />
    <link:label id="lab_us-gaap_NumberOfReportableSegments_F8A857855C5EC8FA90B3716B13E3E375_terseLabel_en-US" xlink:label="lab_us-gaap_NumberOfReportableSegments_F8A857855C5EC8FA90B3716B13E3E375" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of business segments</link:label>
    <link:label id="lab_us-gaap_NumberOfReportableSegments_F8A857855C5EC8FA90B3716B13E3E375_label_en-US" xlink:label="lab_us-gaap_NumberOfReportableSegments_F8A857855C5EC8FA90B3716B13E3E375" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number of Reportable Segments</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NumberOfReportableSegments" xlink:label="loc_us-gaap_NumberOfReportableSegments_F8A857855C5EC8FA90B3716B13E3E375" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NumberOfReportableSegments_F8A857855C5EC8FA90B3716B13E3E375" xlink:to="lab_us-gaap_NumberOfReportableSegments_F8A857855C5EC8FA90B3716B13E3E375" xlink:type="arc" />
    <link:label id="lab_us-gaap_NumberOfOperatingSegments_99FEE9BA07712746C955716B13E3FB2C_terseLabel_en-US" xlink:label="lab_us-gaap_NumberOfOperatingSegments_99FEE9BA07712746C955716B13E3FB2C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of operating segments</link:label>
    <link:label id="lab_us-gaap_NumberOfOperatingSegments_99FEE9BA07712746C955716B13E3FB2C_label_en-US" xlink:label="lab_us-gaap_NumberOfOperatingSegments_99FEE9BA07712746C955716B13E3FB2C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number of Operating Segments</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NumberOfOperatingSegments" xlink:label="loc_us-gaap_NumberOfOperatingSegments_99FEE9BA07712746C955716B13E3FB2C" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NumberOfOperatingSegments_99FEE9BA07712746C955716B13E3FB2C" xlink:to="lab_us-gaap_NumberOfOperatingSegments_99FEE9BA07712746C955716B13E3FB2C" xlink:type="arc" />
    <link:label id="lab_us-gaap_SegmentReportingInformationRevenueAbstract_C9B7677A67D455BD8D29716B13E30E22_terseLabel_en-US" xlink:label="lab_us-gaap_SegmentReportingInformationRevenueAbstract_C9B7677A67D455BD8D29716B13E30E22" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net sales:</link:label>
    <link:label id="lab_us-gaap_SegmentReportingInformationRevenueAbstract_C9B7677A67D455BD8D29716B13E30E22_label_en-US" xlink:label="lab_us-gaap_SegmentReportingInformationRevenueAbstract_C9B7677A67D455BD8D29716B13E30E22" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Segment Reporting Information, Revenue for Reportable Segment [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SegmentReportingInformationRevenueAbstract" xlink:label="loc_us-gaap_SegmentReportingInformationRevenueAbstract_C9B7677A67D455BD8D29716B13E30E22" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SegmentReportingInformationRevenueAbstract_C9B7677A67D455BD8D29716B13E30E22" xlink:to="lab_us-gaap_SegmentReportingInformationRevenueAbstract_C9B7677A67D455BD8D29716B13E30E22" xlink:type="arc" />
    <link:label id="lab_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_052494A95376CD156036716B13E394C8_terseLabel_en-US" xlink:label="lab_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_052494A95376CD156036716B13E394C8" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Total net sales revenue</link:label>
    <link:label id="lab_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_052494A95376CD156036716B13E394C8_label_en-US" xlink:label="lab_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_052494A95376CD156036716B13E394C8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Revenue from Contract with Customer, Excluding Assessed Tax</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_052494A95376CD156036716B13E394C8" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_052494A95376CD156036716B13E394C8" xlink:to="lab_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_052494A95376CD156036716B13E394C8" xlink:type="arc" />
    <link:label id="lab_natr_ContributionMarginAbstract_CCA92C7457FBAB4E995B716B13E4CF49_terseLabel_en-US" xlink:label="lab_natr_ContributionMarginAbstract_CCA92C7457FBAB4E995B716B13E4CF49" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Contribution margin:</link:label>
    <link:label id="lab_natr_ContributionMarginAbstract_CCA92C7457FBAB4E995B716B13E4CF49_label_en-US" xlink:label="lab_natr_ContributionMarginAbstract_CCA92C7457FBAB4E995B716B13E4CF49" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Contribution Margin [Abstract]</link:label>
    <link:label id="lab_natr_ContributionMarginAbstract_CCA92C7457FBAB4E995B716B13E4CF49_documentation_en-US" xlink:label="lab_natr_ContributionMarginAbstract_CCA92C7457FBAB4E995B716B13E4CF49" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US" />
    <link:loc xlink:href="natr-20190630.xsd#natr_ContributionMarginAbstract" xlink:label="loc_natr_ContributionMarginAbstract_CCA92C7457FBAB4E995B716B13E4CF49" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_natr_ContributionMarginAbstract_CCA92C7457FBAB4E995B716B13E4CF49" xlink:to="lab_natr_ContributionMarginAbstract_CCA92C7457FBAB4E995B716B13E4CF49" xlink:type="arc" />
    <link:label id="lab_natr_ContributionMargin_37F3FF913B188B6C064F716B13E468F3_terseLabel_en-US" xlink:label="lab_natr_ContributionMargin_37F3FF913B188B6C064F716B13E468F3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Total contribution margin</link:label>
    <link:label id="lab_natr_ContributionMargin_37F3FF913B188B6C064F716B13E468F3_label_en-US" xlink:label="lab_natr_ContributionMargin_37F3FF913B188B6C064F716B13E468F3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Contribution Margin</link:label>
    <link:label id="lab_natr_ContributionMargin_37F3FF913B188B6C064F716B13E468F3_documentation_en-US" xlink:label="lab_natr_ContributionMargin_37F3FF913B188B6C064F716B13E468F3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the amount of contribution margin which consists of net sales revenue less cost of sales and volume incentives expense.</link:label>
    <link:loc xlink:href="natr-20190630.xsd#natr_ContributionMargin" xlink:label="loc_natr_ContributionMargin_37F3FF913B188B6C064F716B13E468F3" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_natr_ContributionMargin_37F3FF913B188B6C064F716B13E468F3" xlink:to="lab_natr_ContributionMargin_37F3FF913B188B6C064F716B13E468F3" xlink:type="arc" />
    <link:label id="lab_us-gaap_SellingGeneralAndAdministrativeExpense_D4BF13339D7AA61E6937716B13E90BFF_verboseLabel_en-US" xlink:label="lab_us-gaap_SellingGeneralAndAdministrativeExpense_D4BF13339D7AA61E6937716B13E90BFF" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Selling, general and administrative expenses</link:label>
    <link:label id="lab_us-gaap_SellingGeneralAndAdministrativeExpense_D4BF13339D7AA61E6937716B13E90BFF_label_en-US" xlink:label="lab_us-gaap_SellingGeneralAndAdministrativeExpense_D4BF13339D7AA61E6937716B13E90BFF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Selling, General and Administrative Expense</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SellingGeneralAndAdministrativeExpense" xlink:label="loc_us-gaap_SellingGeneralAndAdministrativeExpense_D4BF13339D7AA61E6937716B13E90BFF" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SellingGeneralAndAdministrativeExpense_D4BF13339D7AA61E6937716B13E90BFF" xlink:to="lab_us-gaap_SellingGeneralAndAdministrativeExpense_D4BF13339D7AA61E6937716B13E90BFF" xlink:type="arc" />
    <link:label id="lab_us-gaap_OperatingIncomeLoss_823968D8BF5E7B193B5B716B13E93111_totalLabel_en-US" xlink:label="lab_us-gaap_OperatingIncomeLoss_823968D8BF5E7B193B5B716B13E93111" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Operating income</link:label>
    <link:label id="lab_us-gaap_OperatingIncomeLoss_823968D8BF5E7B193B5B716B13E93111_label_en-US" xlink:label="lab_us-gaap_OperatingIncomeLoss_823968D8BF5E7B193B5B716B13E93111" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Operating Income (Loss)</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OperatingIncomeLoss" xlink:label="loc_us-gaap_OperatingIncomeLoss_823968D8BF5E7B193B5B716B13E93111" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingIncomeLoss_823968D8BF5E7B193B5B716B13E93111" xlink:to="lab_us-gaap_OperatingIncomeLoss_823968D8BF5E7B193B5B716B13E93111" xlink:type="arc" />
    <link:label id="lab_us-gaap_OtherNonoperatingIncomeExpense_9E3893833444EF58BE55716B13EA0086_terseLabel_en-US" xlink:label="lab_us-gaap_OtherNonoperatingIncomeExpense_9E3893833444EF58BE55716B13EA0086" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other income (loss), net</link:label>
    <link:label id="lab_us-gaap_OtherNonoperatingIncomeExpense_9E3893833444EF58BE55716B13EA0086_label_en-US" xlink:label="lab_us-gaap_OtherNonoperatingIncomeExpense_9E3893833444EF58BE55716B13EA0086" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Nonoperating Income (Expense)</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherNonoperatingIncomeExpense" xlink:label="loc_us-gaap_OtherNonoperatingIncomeExpense_9E3893833444EF58BE55716B13EA0086" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherNonoperatingIncomeExpense_9E3893833444EF58BE55716B13EA0086" xlink:to="lab_us-gaap_OtherNonoperatingIncomeExpense_9E3893833444EF58BE55716B13EA0086" xlink:type="arc" />
    <link:label id="lab_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_AC3680389679884C0514716B13EAC101_terseLabel_en-US" xlink:label="lab_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_AC3680389679884C0514716B13EAC101" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Income before provision for income taxes</link:label>
    <link:label id="lab_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_AC3680389679884C0514716B13EAC101_label_en-US" xlink:label="lab_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_AC3680389679884C0514716B13EAC101" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest</link:label>
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    <link:label id="lab_us-gaap_RelatedPartyTransactionLineItems_95FFD9F466CB97E865F65D762215882F_label_en-US" xlink:label="lab_us-gaap_RelatedPartyTransactionLineItems_95FFD9F466CB97E865F65D762215882F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Related Party Transaction [Line Items]</link:label>
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    <link:label id="lab_us-gaap_RelatedPartyTransactionAmountsOfTransaction_B75696D34727228E53D35D7622152496_label_en-US" xlink:label="lab_us-gaap_RelatedPartyTransactionAmountsOfTransaction_B75696D34727228E53D35D7622152496" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Related Party Transaction, Amounts of Transaction</link:label>
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    <link:label id="lab_us-gaap_RelatedPartyTransactionRate_FC50B6A9523501A240815D762215B38A_label_en-US" xlink:label="lab_us-gaap_RelatedPartyTransactionRate_FC50B6A9523501A240815D762215B38A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Related Party Transaction, Rate</link:label>
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    <link:label id="lab_us-gaap_NotesReceivableRelatedPartiesCurrent_DEAE59D711A9142E282D5D762215D4E6_label_en-US" xlink:label="lab_us-gaap_NotesReceivableRelatedPartiesCurrent_DEAE59D711A9142E282D5D762215D4E6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Notes Receivable, Related Parties, Current</link:label>
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    <link:label id="lab_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_E2A05BF70DFCB62A658E531EE6DB7BF5_terseLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_E2A05BF70DFCB62A658E531EE6DB7BF5" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">CASH FLOWS FROM OPERATING ACTIVITIES:</link:label>
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    <link:label id="lab_us-gaap_ProfitLoss_522AFDCFAEAC9B5A079E531EE6DB5E3B_terseLabel_en-US" xlink:label="lab_us-gaap_ProfitLoss_522AFDCFAEAC9B5A079E531EE6DB5E3B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net income</link:label>
    <link:label id="lab_us-gaap_ProfitLoss_522AFDCFAEAC9B5A079E531EE6DB5E3B_label_en-US" xlink:label="lab_us-gaap_ProfitLoss_522AFDCFAEAC9B5A079E531EE6DB5E3B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net Income (Loss), Including Portion Attributable to Noncontrolling Interest</link:label>
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    <link:label id="lab_us-gaap_AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_D25D566E6527ADDC0639531EE6DC1819_terseLabel_en-US" xlink:label="lab_us-gaap_AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_D25D566E6527ADDC0639531EE6DC1819" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Adjustments to reconcile net income to net cash (used in) provided by operating activities:</link:label>
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    <link:label id="lab_us-gaap_ProvisionForDoubtfulAccounts_93F72D55C1468C071BA1531EE6DC111C_terseLabel_en-US" xlink:label="lab_us-gaap_ProvisionForDoubtfulAccounts_93F72D55C1468C071BA1531EE6DC111C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Provision for doubtful accounts</link:label>
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    <link:label id="lab_natr_OperatingLeaseNonCashLeaseExpense_C02C9209F5628EAF132B531EE6DD4BFB_terseLabel_en-US" xlink:label="lab_natr_OperatingLeaseNonCashLeaseExpense_C02C9209F5628EAF132B531EE6DD4BFB" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Non-cash lease expense</link:label>
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    <link:label id="lab_us-gaap_DeferredIncomeTaxExpenseBenefit_D7FD6CF60C55C68AC0EB531EE6DDF2DD_terseLabel_en-US" xlink:label="lab_us-gaap_DeferredIncomeTaxExpenseBenefit_D7FD6CF60C55C68AC0EB531EE6DDF2DD" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Deferred income taxes</link:label>
    <link:label id="lab_us-gaap_DeferredIncomeTaxExpenseBenefit_D7FD6CF60C55C68AC0EB531EE6DDF2DD_label_en-US" xlink:label="lab_us-gaap_DeferredIncomeTaxExpenseBenefit_D7FD6CF60C55C68AC0EB531EE6DDF2DD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deferred Income Tax Expense (Benefit)</link:label>
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    <link:label id="lab_us-gaap_ProceedsFromSaleOfSecuritiesOperatingActivities_499281F8D0356F6205D5531EE6DE0948_label_en-US" xlink:label="lab_us-gaap_ProceedsFromSaleOfSecuritiesOperatingActivities_499281F8D0356F6205D5531EE6DE0948" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Proceeds from Sale of Securities, Operating Activities</link:label>
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    <link:loc xlink:href="natr-20190630.xsd#natr_IncreaseDecreaseInOperatingLeaseLiabilities" xlink:label="loc_natr_IncreaseDecreaseInOperatingLeaseLiabilities_4047406E29AD47BDB48A531EE6E0CAD1" xlink:type="locator" />
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    <link:label id="lab_us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable_A2D58E37EDEFBCA76BE7531EE6E00A9C_terseLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable_A2D58E37EDEFBCA76BE7531EE6E00A9C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Income taxes payable</link:label>
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable" xlink:label="loc_us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable_A2D58E37EDEFBCA76BE7531EE6E00A9C" xlink:type="locator" />
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_81115DAC25CEF671BCD3531EE6E160AE" xlink:type="locator" />
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    <link:label id="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_DA58F3D0DC5C72DFD4EE531EE6E126D8_terseLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_DA58F3D0DC5C72DFD4EE531EE6E126D8" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">CASH FLOWS FROM INVESTING ACTIVITIES:</link:label>
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_DA58F3D0DC5C72DFD4EE531EE6E126D8_label_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_DA58F3D0DC5C72DFD4EE531EE6E126D8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net Cash Provided by (Used in) Investing Activities [Abstract]</link:label>
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    <link:label id="lab_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_122F5121D7B2AA8C12E7531EE6E1646B_negatedLabel_en-US" xlink:label="lab_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_122F5121D7B2AA8C12E7531EE6E1646B" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Purchases of property, plant and equipment</link:label>
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    <link:label id="lab_us-gaap_VestingAxis_B0FB10A0D3AA5D97DF0E716B145C65F7_label_en-US" xlink:label="lab_us-gaap_VestingAxis_B0FB10A0D3AA5D97DF0E716B145C65F7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Vesting [Axis]</link:label>
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    <link:loc xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_MaximumMember" xlink:label="loc_srt_MaximumMember_4196A60C9D685077A93F716B146279F5" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_MaximumMember_4196A60C9D685077A93F716B146279F5" xlink:to="lab_srt_MaximumMember_4196A60C9D685077A93F716B146279F5" xlink:type="arc" />
    <link:label id="lab_us-gaap_PlanNameAxis_1C2B80B87E54634573FF716B1463B556_terseLabel_en-US" xlink:label="lab_us-gaap_PlanNameAxis_1C2B80B87E54634573FF716B1463B556" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Plan Name [Axis]</link:label>
    <link:label id="lab_us-gaap_PlanNameAxis_1C2B80B87E54634573FF716B1463B556_label_en-US" xlink:label="lab_us-gaap_PlanNameAxis_1C2B80B87E54634573FF716B1463B556" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Plan Name [Axis]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PlanNameAxis" xlink:label="loc_us-gaap_PlanNameAxis_1C2B80B87E54634573FF716B1463B556" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PlanNameAxis_1C2B80B87E54634573FF716B1463B556" xlink:to="lab_us-gaap_PlanNameAxis_1C2B80B87E54634573FF716B1463B556" xlink:type="arc" />
    <link:label id="lab_us-gaap_PlanNameDomain_4F494B4F4ECEA62C3555716B1463D974_terseLabel_en-US" xlink:label="lab_us-gaap_PlanNameDomain_4F494B4F4ECEA62C3555716B1463D974" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Plan Name [Domain]</link:label>
    <link:label id="lab_us-gaap_PlanNameDomain_4F494B4F4ECEA62C3555716B1463D974_label_en-US" xlink:label="lab_us-gaap_PlanNameDomain_4F494B4F4ECEA62C3555716B1463D974" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Plan Name [Domain]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PlanNameDomain" xlink:label="loc_us-gaap_PlanNameDomain_4F494B4F4ECEA62C3555716B1463D974" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PlanNameDomain_4F494B4F4ECEA62C3555716B1463D974" xlink:to="lab_us-gaap_PlanNameDomain_4F494B4F4ECEA62C3555716B1463D974" xlink:type="arc" />
    <link:label id="lab_natr_A2012IncentivePlanMember_1A70433B19C66385BEDE716B1463CFA5_terseLabel_en-US" xlink:label="lab_natr_A2012IncentivePlanMember_1A70433B19C66385BEDE716B1463CFA5" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">2012 Stock Incentive Plan</link:label>
    <link:label id="lab_natr_A2012IncentivePlanMember_1A70433B19C66385BEDE716B1463CFA5_label_en-US" xlink:label="lab_natr_A2012IncentivePlanMember_1A70433B19C66385BEDE716B1463CFA5" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">2012 Incentive Plan [Member]</link:label>
    <link:label id="lab_natr_A2012IncentivePlanMember_1A70433B19C66385BEDE716B1463CFA5_documentation_en-US" xlink:label="lab_natr_A2012IncentivePlanMember_1A70433B19C66385BEDE716B1463CFA5" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the information pertaining to 2012 incentive plan.</link:label>
    <link:loc xlink:href="natr-20190630.xsd#natr_A2012IncentivePlanMember" xlink:label="loc_natr_A2012IncentivePlanMember_1A70433B19C66385BEDE716B1463CFA5" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_natr_A2012IncentivePlanMember_1A70433B19C66385BEDE716B1463CFA5" xlink:to="lab_natr_A2012IncentivePlanMember_1A70433B19C66385BEDE716B1463CFA5" xlink:type="arc" />
    <link:label id="lab_natr_IncentivePlan2009Member_E7DC4B6F5F5B587AB93C716B146453C0_terseLabel_en-US" xlink:label="lab_natr_IncentivePlan2009Member_E7DC4B6F5F5B587AB93C716B146453C0" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">2009 Incentive Plan</link:label>
    <link:label id="lab_natr_IncentivePlan2009Member_E7DC4B6F5F5B587AB93C716B146453C0_label_en-US" xlink:label="lab_natr_IncentivePlan2009Member_E7DC4B6F5F5B587AB93C716B146453C0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Incentive Plan2009 [Member]</link:label>
    <link:label id="lab_natr_IncentivePlan2009Member_E7DC4B6F5F5B587AB93C716B146453C0_documentation_en-US" xlink:label="lab_natr_IncentivePlan2009Member_E7DC4B6F5F5B587AB93C716B146453C0" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the information pertaining to 2009 incentive plan.</link:label>
    <link:loc xlink:href="natr-20190630.xsd#natr_IncentivePlan2009Member" xlink:label="loc_natr_IncentivePlan2009Member_E7DC4B6F5F5B587AB93C716B146453C0" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_natr_IncentivePlan2009Member_E7DC4B6F5F5B587AB93C716B146453C0" xlink:to="lab_natr_IncentivePlan2009Member_E7DC4B6F5F5B587AB93C716B146453C0" xlink:type="arc" />
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_8171AEA8C93E4D697551716B14649C3E_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_8171AEA8C93E4D697551716B14649C3E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of shares authorized under the plan (in shares)</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_8171AEA8C93E4D697551716B14649C3E_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_8171AEA8C93E4D697551716B14649C3E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_8171AEA8C93E4D697551716B14649C3E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_8171AEA8C93E4D697551716B14649C3E" xlink:to="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_8171AEA8C93E4D697551716B14649C3E" xlink:type="arc" />
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized_92E6D525E181DBCB1BDB716B1464DFB4_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized_92E6D525E181DBCB1BDB716B1464DFB4" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Additional number of shares authorized under the plan (in shares)</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized_92E6D525E181DBCB1BDB716B1464DFB4_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized_92E6D525E181DBCB1BDB716B1464DFB4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized_92E6D525E181DBCB1BDB716B1464DFB4" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized_92E6D525E181DBCB1BDB716B1464DFB4" xlink:to="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized_92E6D525E181DBCB1BDB716B1464DFB4" xlink:type="arc" />
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_F601E6ECE87A21CA669C716B1464D716_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_F601E6ECE87A21CA669C716B1464D716" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Vesting period</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_F601E6ECE87A21CA669C716B1464D716_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_F601E6ECE87A21CA669C716B1464D716" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_F601E6ECE87A21CA669C716B1464D716" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_F601E6ECE87A21CA669C716B1464D716" xlink:to="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_F601E6ECE87A21CA669C716B1464D716" xlink:type="arc" />
    <link:label id="lab_natr_ShareBasedCompensationArrangementByShareBasedPaymentAwardOperatingMarginsOne_404A15086F269ABD11E2716B14656109_terseLabel_en-US" xlink:label="lab_natr_ShareBasedCompensationArrangementByShareBasedPaymentAwardOperatingMarginsOne_404A15086F269ABD11E2716B14656109" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Operating income margin, one (as a percent)</link:label>
    <link:label id="lab_natr_ShareBasedCompensationArrangementByShareBasedPaymentAwardOperatingMarginsOne_404A15086F269ABD11E2716B14656109_label_en-US" xlink:label="lab_natr_ShareBasedCompensationArrangementByShareBasedPaymentAwardOperatingMarginsOne_404A15086F269ABD11E2716B14656109" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share Based Compensation Arrangement by Share Based Payment Award, Operating Margins, One</link:label>
    <link:label id="lab_natr_ShareBasedCompensationArrangementByShareBasedPaymentAwardOperatingMarginsOne_404A15086F269ABD11E2716B14656109_documentation_en-US" xlink:label="lab_natr_ShareBasedCompensationArrangementByShareBasedPaymentAwardOperatingMarginsOne_404A15086F269ABD11E2716B14656109" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the first operating margin percentage to be achieved for the vesting of stock options.</link:label>
    <link:loc xlink:href="natr-20190630.xsd#natr_ShareBasedCompensationArrangementByShareBasedPaymentAwardOperatingMarginsOne" xlink:label="loc_natr_ShareBasedCompensationArrangementByShareBasedPaymentAwardOperatingMarginsOne_404A15086F269ABD11E2716B14656109" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_natr_ShareBasedCompensationArrangementByShareBasedPaymentAwardOperatingMarginsOne_404A15086F269ABD11E2716B14656109" xlink:to="lab_natr_ShareBasedCompensationArrangementByShareBasedPaymentAwardOperatingMarginsOne_404A15086F269ABD11E2716B14656109" xlink:type="arc" />
    <link:label id="lab_natr_ShareBasedCompensationArrangementByShareBasedPaymentAwardOperatingMarginsTwo_7B5DE9F7B2B899BD1DAB716B14659A1F_terseLabel_en-US" xlink:label="lab_natr_ShareBasedCompensationArrangementByShareBasedPaymentAwardOperatingMarginsTwo_7B5DE9F7B2B899BD1DAB716B14659A1F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Operating income margin, two (as a percent)</link:label>
    <link:label id="lab_natr_ShareBasedCompensationArrangementByShareBasedPaymentAwardOperatingMarginsTwo_7B5DE9F7B2B899BD1DAB716B14659A1F_label_en-US" xlink:label="lab_natr_ShareBasedCompensationArrangementByShareBasedPaymentAwardOperatingMarginsTwo_7B5DE9F7B2B899BD1DAB716B14659A1F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share Based Compensation Arrangement by Share Based Payment Award, Operating Margins, Two</link:label>
    <link:label id="lab_natr_ShareBasedCompensationArrangementByShareBasedPaymentAwardOperatingMarginsTwo_7B5DE9F7B2B899BD1DAB716B14659A1F_documentation_en-US" xlink:label="lab_natr_ShareBasedCompensationArrangementByShareBasedPaymentAwardOperatingMarginsTwo_7B5DE9F7B2B899BD1DAB716B14659A1F" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the second operating margin percentage to be achieved for the vesting of stock options.</link:label>
    <link:loc xlink:href="natr-20190630.xsd#natr_ShareBasedCompensationArrangementByShareBasedPaymentAwardOperatingMarginsTwo" xlink:label="loc_natr_ShareBasedCompensationArrangementByShareBasedPaymentAwardOperatingMarginsTwo_7B5DE9F7B2B899BD1DAB716B14659A1F" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_natr_ShareBasedCompensationArrangementByShareBasedPaymentAwardOperatingMarginsTwo_7B5DE9F7B2B899BD1DAB716B14659A1F" xlink:to="lab_natr_ShareBasedCompensationArrangementByShareBasedPaymentAwardOperatingMarginsTwo_7B5DE9F7B2B899BD1DAB716B14659A1F" xlink:type="arc" />
    <link:label id="lab_natr_ShareBasedCompensationArrangementByShareBasedPaymentAwardOperatingMarginsThree_22256B9632E17D786759716B14651E5B_terseLabel_en-US" xlink:label="lab_natr_ShareBasedCompensationArrangementByShareBasedPaymentAwardOperatingMarginsThree_22256B9632E17D786759716B14651E5B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Operating income margin, three (as a percent)</link:label>
    <link:label id="lab_natr_ShareBasedCompensationArrangementByShareBasedPaymentAwardOperatingMarginsThree_22256B9632E17D786759716B14651E5B_label_en-US" xlink:label="lab_natr_ShareBasedCompensationArrangementByShareBasedPaymentAwardOperatingMarginsThree_22256B9632E17D786759716B14651E5B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share Based Compensation Arrangement by Share Based Payment Award, Operating Margins, Three</link:label>
    <link:label id="lab_natr_ShareBasedCompensationArrangementByShareBasedPaymentAwardOperatingMarginsThree_22256B9632E17D786759716B14651E5B_documentation_en-US" xlink:label="lab_natr_ShareBasedCompensationArrangementByShareBasedPaymentAwardOperatingMarginsThree_22256B9632E17D786759716B14651E5B" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the three operating margin percentage to be achieved for the vesting of stock options.</link:label>
    <link:loc xlink:href="natr-20190630.xsd#natr_ShareBasedCompensationArrangementByShareBasedPaymentAwardOperatingMarginsThree" xlink:label="loc_natr_ShareBasedCompensationArrangementByShareBasedPaymentAwardOperatingMarginsThree_22256B9632E17D786759716B14651E5B" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_natr_ShareBasedCompensationArrangementByShareBasedPaymentAwardOperatingMarginsThree_22256B9632E17D786759716B14651E5B" xlink:to="lab_natr_ShareBasedCompensationArrangementByShareBasedPaymentAwardOperatingMarginsThree_22256B9632E17D786759716B14651E5B" xlink:type="arc" />
    <link:label id="lab_natr_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardPerformancePeriod_3D3931B478C3FBF549DE716B14651D8A_terseLabel_en-US" xlink:label="lab_natr_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardPerformancePeriod_3D3931B478C3FBF549DE716B14651D8A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Award performance period</link:label>
    <link:label id="lab_natr_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardPerformancePeriod_3D3931B478C3FBF549DE716B14651D8A_label_en-US" xlink:label="lab_natr_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardPerformancePeriod_3D3931B478C3FBF549DE716B14651D8A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share-Based Compensation Arrangement By Share-Based Payment Award, Award Performance Period</link:label>
    <link:label id="lab_natr_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardPerformancePeriod_3D3931B478C3FBF549DE716B14651D8A_documentation_en-US" xlink:label="lab_natr_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardPerformancePeriod_3D3931B478C3FBF549DE716B14651D8A" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Share-Based Compensation Arrangement By Share-Based Payment Award, Award Performance Period</link:label>
    <link:loc xlink:href="natr-20190630.xsd#natr_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardPerformancePeriod" xlink:label="loc_natr_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardPerformancePeriod_3D3931B478C3FBF549DE716B14651D8A" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_natr_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardPerformancePeriod_3D3931B478C3FBF549DE716B14651D8A" xlink:to="lab_natr_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardPerformancePeriod_3D3931B478C3FBF549DE716B14651D8A" xlink:type="arc" />
    <link:label id="lab_us-gaap_AllocatedShareBasedCompensationExpense_E4258F4F99D8AED08B5E716B1465EE4A_terseLabel_en-US" xlink:label="lab_us-gaap_AllocatedShareBasedCompensationExpense_E4258F4F99D8AED08B5E716B1465EE4A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Share-based compensation expense</link:label>
    <link:label id="lab_us-gaap_AllocatedShareBasedCompensationExpense_E4258F4F99D8AED08B5E716B1465EE4A_label_en-US" xlink:label="lab_us-gaap_AllocatedShareBasedCompensationExpense_E4258F4F99D8AED08B5E716B1465EE4A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share-based Payment Arrangement, Expense</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AllocatedShareBasedCompensationExpense" xlink:label="loc_us-gaap_AllocatedShareBasedCompensationExpense_E4258F4F99D8AED08B5E716B1465EE4A" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AllocatedShareBasedCompensationExpense_E4258F4F99D8AED08B5E716B1465EE4A" xlink:to="lab_us-gaap_AllocatedShareBasedCompensationExpense_E4258F4F99D8AED08B5E716B1465EE4A" xlink:type="arc" />
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_DF3BF96DFD75F4B7DD3E716B146538D0_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_DF3BF96DFD75F4B7DD3E716B146538D0" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Options outstanding (in shares)</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_DF3BF96DFD75F4B7DD3E716B146538D0" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_DF3BF96DFD75F4B7DD3E716B146538D0" xlink:to="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_DF3BF96DFD75F4B7DD3E716B146538D0" xlink:type="arc" />
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_825711E6DEE241BE9ADC716B1466AC35_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_825711E6DEE241BE9ADC716B1466AC35" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Aggregate intrinsic value, outstanding</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_825711E6DEE241BE9ADC716B1466AC35_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_825711E6DEE241BE9ADC716B1466AC35" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_825711E6DEE241BE9ADC716B1466AC35" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_825711E6DEE241BE9ADC716B1466AC35" xlink:to="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_825711E6DEE241BE9ADC716B1466AC35" xlink:type="arc" />
    <link:label id="lab_us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_7DC29FEA3540977027D0716B1466B7EC_terseLabel_en-US" xlink:label="lab_us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_7DC29FEA3540977027D0716B1466B7EC" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Exercised (in shares)</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_7DC29FEA3540977027D0716B1466B7EC" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_7DC29FEA3540977027D0716B1466B7EC" xlink:to="lab_us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_7DC29FEA3540977027D0716B1466B7EC" xlink:type="arc" />
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue_FDC0465A3BBFBF0A09E7716B14663598_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue_FDC0465A3BBFBF0A09E7716B14663598" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Aggregate intrinsic values of options exercised</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue_FDC0465A3BBFBF0A09E7716B14663598_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue_FDC0465A3BBFBF0A09E7716B14663598" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue_FDC0465A3BBFBF0A09E7716B14663598" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue_FDC0465A3BBFBF0A09E7716B14663598" xlink:to="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue_FDC0465A3BBFBF0A09E7716B14663598" xlink:type="arc" />
    <link:label id="lab_us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromExerciseOfStockOptions_03CC8ABCB72087A48137716B1466422A_terseLabel_en-US" xlink:label="lab_us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromExerciseOfStockOptions_03CC8ABCB72087A48137716B1466422A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Tax benefit from the exercise of stock options</link:label>
    <link:label id="lab_us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromExerciseOfStockOptions_03CC8ABCB72087A48137716B1466422A_label_en-US" xlink:label="lab_us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromExerciseOfStockOptions_03CC8ABCB72087A48137716B1466422A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share-based Payment Arrangement, Exercise of Option, Tax Benefit</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromExerciseOfStockOptions" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromExerciseOfStockOptions_03CC8ABCB72087A48137716B1466422A" xlink:type="locator" />
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    <link:label id="lab_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares_CDB31D0AC4D3E14467B0716B146693B5_terseLabel_en-US" xlink:label="lab_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares_CDB31D0AC4D3E14467B0716B146693B5" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Unvested stock options outstanding (in shares)</link:label>
    <link:label id="lab_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares_CDB31D0AC4D3E14467B0716B146693B5_label_en-US" xlink:label="lab_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares_CDB31D0AC4D3E14467B0716B146693B5" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Number of Shares</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares_CDB31D0AC4D3E14467B0716B146693B5" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares_CDB31D0AC4D3E14467B0716B146693B5" xlink:to="lab_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares_CDB31D0AC4D3E14467B0716B146693B5" xlink:type="arc" />
    <link:label id="lab_natr_RestrictionPeriodForIssuanceOfShares_43D7CE55DAD4DAF03AE7716B14676A0A_terseLabel_en-US" xlink:label="lab_natr_RestrictionPeriodForIssuanceOfShares_43D7CE55DAD4DAF03AE7716B14676A0A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Restriction period for issuance of shares</link:label>
    <link:label id="lab_natr_RestrictionPeriodForIssuanceOfShares_43D7CE55DAD4DAF03AE7716B14676A0A_label_en-US" xlink:label="lab_natr_RestrictionPeriodForIssuanceOfShares_43D7CE55DAD4DAF03AE7716B14676A0A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Restriction Period for Issuance of Shares</link:label>
    <link:label id="lab_natr_RestrictionPeriodForIssuanceOfShares_43D7CE55DAD4DAF03AE7716B14676A0A_documentation_en-US" xlink:label="lab_natr_RestrictionPeriodForIssuanceOfShares_43D7CE55DAD4DAF03AE7716B14676A0A" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the restriction period before shares will be issued related to a share-based compensation plan.</link:label>
    <link:loc xlink:href="natr-20190630.xsd#natr_RestrictionPeriodForIssuanceOfShares" xlink:label="loc_natr_RestrictionPeriodForIssuanceOfShares_43D7CE55DAD4DAF03AE7716B14676A0A" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_natr_RestrictionPeriodForIssuanceOfShares_43D7CE55DAD4DAF03AE7716B14676A0A" xlink:to="lab_natr_RestrictionPeriodForIssuanceOfShares_43D7CE55DAD4DAF03AE7716B14676A0A" xlink:type="arc" />
    <link:label id="lab_natr_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedSubjectToRestrictionPeriodNumber_F7A2A4A91C82CFC735CF716B1467B3E3_terseLabel_en-US" xlink:label="lab_natr_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedSubjectToRestrictionPeriodNumber_F7A2A4A91C82CFC735CF716B1467B3E3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Nonvested subject to restriction period (in shares)</link:label>
    <link:label id="lab_natr_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedSubjectToRestrictionPeriodNumber_F7A2A4A91C82CFC735CF716B1467B3E3_label_en-US" xlink:label="lab_natr_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedSubjectToRestrictionPeriodNumber_F7A2A4A91C82CFC735CF716B1467B3E3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested Subject to Restriction Period, Number</link:label>
    <link:label id="lab_natr_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedSubjectToRestrictionPeriodNumber_F7A2A4A91C82CFC735CF716B1467B3E3_documentation_en-US" xlink:label="lab_natr_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedSubjectToRestrictionPeriodNumber_F7A2A4A91C82CFC735CF716B1467B3E3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The number of non-vested equity-based payment instruments subject to restriction period, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.</link:label>
    <link:loc xlink:href="natr-20190630.xsd#natr_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedSubjectToRestrictionPeriodNumber" xlink:label="loc_natr_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedSubjectToRestrictionPeriodNumber_F7A2A4A91C82CFC735CF716B1467B3E3" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_natr_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedSubjectToRestrictionPeriodNumber_F7A2A4A91C82CFC735CF716B1467B3E3" xlink:to="lab_natr_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedSubjectToRestrictionPeriodNumber_F7A2A4A91C82CFC735CF716B1467B3E3" xlink:type="arc" />
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_B827B7856F2BFFF6AD38716B14670AAA_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_B827B7856F2BFFF6AD38716B14670AAA" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Granted (in shares)</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_B827B7856F2BFFF6AD38716B14670AAA_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_B827B7856F2BFFF6AD38716B14670AAA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_B827B7856F2BFFF6AD38716B14670AAA" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_B827B7856F2BFFF6AD38716B14670AAA" xlink:to="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_B827B7856F2BFFF6AD38716B14670AAA" xlink:type="arc" />
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_E21FC90D0D1D2C535239716B1467F429_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_E21FC90D0D1D2C535239716B1467F429" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Weighted-average grant date fair value (in dollars per share)</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_E21FC90D0D1D2C535239716B1467F429_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_E21FC90D0D1D2C535239716B1467F429" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_E21FC90D0D1D2C535239716B1467F429" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_E21FC90D0D1D2C535239716B1467F429" xlink:to="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_E21FC90D0D1D2C535239716B1467F429" xlink:type="arc" />
    <link:label id="lab_natr_SharebasedCompensationArrangementbySharebasedPaymentAwardFairValueAssumptionsDiscountforLackofMarketability_FD4999808815AA99CD19716B146759A6_terseLabel_en-US" xlink:label="lab_natr_SharebasedCompensationArrangementbySharebasedPaymentAwardFairValueAssumptionsDiscountforLackofMarketability_FD4999808815AA99CD19716B146759A6" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Discount for lack of marketability</link:label>
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    <link:loc xlink:href="natr-20190630.xsd#natr_SharebasedCompensationArrangementbySharebasedPaymentAwardFairValueAssumptionsDiscountforLackofMarketability" xlink:label="loc_natr_SharebasedCompensationArrangementbySharebasedPaymentAwardFairValueAssumptionsDiscountforLackofMarketability_FD4999808815AA99CD19716B146759A6" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_natr_SharebasedCompensationArrangementbySharebasedPaymentAwardFairValueAssumptionsDiscountforLackofMarketability_FD4999808815AA99CD19716B146759A6" xlink:to="lab_natr_SharebasedCompensationArrangementbySharebasedPaymentAwardFairValueAssumptionsDiscountforLackofMarketability_FD4999808815AA99CD19716B146759A6" xlink:type="arc" />
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_69756DE9D3074216AD77716B146829DE_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_69756DE9D3074216AD77716B146829DE" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Expected volatility (as a percent)</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_69756DE9D3074216AD77716B146829DE_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_69756DE9D3074216AD77716B146829DE" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_69756DE9D3074216AD77716B146829DE" xlink:type="locator" />
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    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage_ED65D70A8DDD71B0A592531EE69EDA75" xlink:to="lab_us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage_ED65D70A8DDD71B0A592531EE69EDA75" xlink:type="arc" />
    <link:label id="lab_us-gaap_LineOfCredit_48A67E0EFEA86D888673531EE69F2196_verboseLabel_en-US" xlink:label="lab_us-gaap_LineOfCredit_48A67E0EFEA86D888673531EE69F2196" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Long-term line of credit</link:label>
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    <link:label id="lab_us-gaap_IncomeStatementAbstract_B44FC1A8C0D18F53791D531EE700AB7D_label_en-US" xlink:label="lab_us-gaap_IncomeStatementAbstract_B44FC1A8C0D18F53791D531EE700AB7D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Income Statement [Abstract]</link:label>
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    <link:label id="lab_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_B0BD606E04331F5098A5531EE700847F_verboseLabel_en-US" xlink:label="lab_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_B0BD606E04331F5098A5531EE700847F" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Net sales</link:label>
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    <link:label id="lab_us-gaap_CostOfGoodsAndServicesSold_7620392AD46CBF930869531EE7012B20_label_en-US" xlink:label="lab_us-gaap_CostOfGoodsAndServicesSold_7620392AD46CBF930869531EE7012B20" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cost of Goods and Services Sold</link:label>
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    <link:label id="lab_us-gaap_GrossProfit_21C367E898887AAA9E40531EE701D069_label_en-US" xlink:label="lab_us-gaap_GrossProfit_21C367E898887AAA9E40531EE701D069" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Gross Profit</link:label>
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    <link:label id="lab_us-gaap_OperatingExpensesAbstract_92169BA64C1BE8245670531EE701E621_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingExpensesAbstract_92169BA64C1BE8245670531EE701E621" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Operating expenses:</link:label>
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    <link:label id="lab_natr_VolumeIncentives_0D320180760A277A0000531EE701EF4D_label_en-US" xlink:label="lab_natr_VolumeIncentives_0D320180760A277A0000531EE701EF4D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Volume Incentives</link:label>
    <link:label id="lab_natr_VolumeIncentives_0D320180760A277A0000531EE701EF4D_documentation_en-US" xlink:label="lab_natr_VolumeIncentives_0D320180760A277A0000531EE701EF4D" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This element represents the expenses that are related to incentives on volume sales, during the reporting period by the entity.</link:label>
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    <link:label id="lab_us-gaap_SellingGeneralAndAdministrativeExpense_56B57EB14950E50D9E14531EE7018916_terseLabel_en-US" xlink:label="lab_us-gaap_SellingGeneralAndAdministrativeExpense_56B57EB14950E50D9E14531EE7018916" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Selling, general and administrative</link:label>
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    <link:label id="lab_us-gaap_OtherNonoperatingIncomeExpense_761DD21AC33FFEAD0A8D531EE702DE78_verboseLabel_en-US" xlink:label="lab_us-gaap_OtherNonoperatingIncomeExpense_761DD21AC33FFEAD0A8D531EE702DE78" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Other income (loss), net</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherNonoperatingIncomeExpense" xlink:label="loc_us-gaap_OtherNonoperatingIncomeExpense_761DD21AC33FFEAD0A8D531EE702DE78" xlink:type="locator" />
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_700609029579BC3C8F67531EE702BD3E" xlink:type="locator" />
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    <link:label id="lab_us-gaap_IncomeTaxExpenseBenefit_4584E031926077B9542E531EE702B0F1_terseLabel_en-US" xlink:label="lab_us-gaap_IncomeTaxExpenseBenefit_4584E031926077B9542E531EE702B0F1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Provision for income taxes</link:label>
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    <link:label id="lab_us-gaap_ProfitLoss_2242271E6CC66778C9FD531EE702D2B4_totalLabel_en-US" xlink:label="lab_us-gaap_ProfitLoss_2242271E6CC66778C9FD531EE702D2B4" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Net income (loss)</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ProfitLoss" xlink:label="loc_us-gaap_ProfitLoss_2242271E6CC66778C9FD531EE702D2B4" xlink:type="locator" />
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