Brand profile

NSF Contents Certified

A certification from NSF International, an American product testing and certification organization founded in 1944, verifying product contents match label claims and are free from contaminants.

1 questions · 1 categories · As of Nov 1, 2026

Best category rank
#8
Vitamins & Supplements · of 26
Questions
1
1 categories
Answers naming it
2/3
Of the answers measured on this brand's questions

Visibility by category

CategoriesCategory rankQuestionsScore
Vitamins & Supplements#8of 26154.6

Ranking by question

Named alongside in Vitamins & Supplements

Brands named in the same answers as NSF Contents Certified in the last four weeks, counted in answers.

Named alongside in Vitamins & SupplementsBrands named in the same answers as NSF Contents Certified in the last four weeks, counted in answers.USP Verified: named in 5 answersUSP VerifiedThorne: named in 7 answersThorneNature Made: named in 6 answersNature MadeKirkland Signature: named in 5 answersKirkland SignatureNSF Certified for Sport: named in 4 answersNSF Certified for SportPure Encapsulations: named in 5 answersPure EncapsulationsGarden of Life: named in 4 answersGarden of LifeNSF Contents Certified: named in 2 answersNSF Contents CertifiedNOW Foods: named in 3 answersNOW FoodsInformed Choice: named in 3 answersInformed ChoiceLife Extension: named in 2 answersLife ExtensionRitual: named in 2 answersRitualNSF International: named in 2 answersNSF InternationalNordic Naturals: named in 4 answersNordic NaturalsConsumerLab Approved: named in 2 answersConsumerLab ApprovedUSP: named in 2 answersUSPVitamin Shoppe: named in 1 answersVitamin ShoppeConsumerLab: named in 1 answersConsumerLabUSDA Organic: named in 1 answersUSDA OrganicInformed-Sport: named in 1 answersInformed-SportMomentous: named in 1 answersMomentousKlean Athlete: named in 1 answersKlean AthleteTransparent Labs: named in 1 answersTransparent LabsMegaFood: named in 2 answersMegaFoodCostco: named in 1 answersCostcoNutricost: named in 1 answersNutricost
  • Answers naming the brand
  • 1
  • 2
  • 7
  • Answers naming both
  • 1
  • 5
Named alongside in Vitamins & SupplementsBrands named in the same answers as NSF Contents Certified in the last four weeks, counted in answers.USP Verified: named in 5 answersUSP VerifiedThorne: named in 7 answersThorneNature Made: named in 6 answersNature MadeKirkland Signature: named in 5 answersNSF Certified for Sport: named in 4 answersPure Encapsulations: named in 5 answersPure EncapsulationsGarden of Life: named in 4 answersGarden of LifeNSF Contents Certified: named in 2 answersNSF Contents CertifiedNOW Foods: named in 3 answersNOW FoodsInformed Choice: named in 3 answersInformed ChoiceLife Extension: named in 2 answersRitual: named in 2 answersRitualNSF International: named in 2 answersNordic Naturals: named in 4 answersConsumerLab Approved: named in 2 answersUSP: named in 2 answersUSPVitamin Shoppe: named in 1 answersVitamin ShoppeConsumerLab: named in 1 answersConsumerLabUSDA Organic: named in 1 answersUSDA OrganicInformed-Sport: named in 1 answersInformed-SportMomentous: named in 1 answersKlean Athlete: named in 1 answersKlean AthleteTransparent Labs: named in 1 answersTransparent LabsMegaFood: named in 2 answersMegaFoodCostco: named in 1 answersCostcoNutricost: named in 1 answers
  • Answers naming the brand
  • 1
  • 2
  • 7
  • Answers naming both
  • 1
  • 5
  1. 12Garden of Life
  2. 22Thorne
  3. 32USP Verified
  4. 41ConsumerLab
  5. 51Informed Choice
  6. 61Kirkland Signature
  7. 71Nature Made
  8. 81NOW Foods
  9. 91Pure Encapsulations
  10. 101USDA Organic
Named alongside
BrandAnswers naming the brandNamed alongside
USP Verified5Kirkland Signature (3), NSF Certified for Sport (3), Thorne (3)
Thorne7Pure Encapsulations (5), Nature Made (5), Garden of Life (4)
Nature Made6Thorne (5), Kirkland Signature (4), Pure Encapsulations (4)
Kirkland Signature5Nature Made (4), NSF Certified for Sport (3), Thorne (3)
NSF Certified for Sport4Kirkland Signature (3), USP Verified (3), NOW Foods (2)
Pure Encapsulations5Thorne (5), Nature Made (4), Nordic Naturals (4)
Garden of Life4Thorne (4), Pure Encapsulations (3), Nature Made (3)
NSF Contents Certified2Thorne (2), Garden of Life (2), USP Verified (2)
NOW Foods3Informed Choice (3), Kirkland Signature (2), NSF Certified for Sport (2)
Informed Choice3NOW Foods (3), Kirkland Signature (2), NSF Certified for Sport (2)
Life Extension2Kirkland Signature (2), NSF Certified for Sport (2), USP Verified (2)
Ritual2Pure Encapsulations (2), Thorne (2), Nature Made (2)
NSF International2Informed-Sport (1), Ritual (1), NOW Foods (1)
Nordic Naturals4Pure Encapsulations (4), Thorne (4), Nature Made (4)
ConsumerLab Approved2Kirkland Signature (2), NSF Certified for Sport (2), USP Verified (2)
USP2NOW Foods (2), Kirkland Signature (2), NSF Certified for Sport (2)
Vitamin Shoppe1Kirkland Signature (1), NSF Certified for Sport (1), USP Verified (1)
ConsumerLab1NSF Contents Certified (1), NOW Foods (1), Informed Choice (1)
USDA Organic1NSF Contents Certified (1), NOW Foods (1), ConsumerLab (1)
Informed-Sport1Ritual (1), NOW Foods (1), Kirkland Signature (1)
Momentous1Informed-Sport (1), Ritual (1), NOW Foods (1)
Klean Athlete1Informed-Sport (1), Ritual (1), NOW Foods (1)
Transparent Labs1Informed-Sport (1), Ritual (1), NOW Foods (1)
MegaFood2Pure Encapsulations (2), Thorne (2), Nature Made (2)
Costco1Nutricost (1), NOW Foods (1), Kirkland Signature (1)
Nutricost1NOW Foods (1), Kirkland Signature (1), NSF Certified for Sport (1)

Sources cited when this brand is named

Sites the answers naming this brand cited in the last four weeks. Counts are citing answers.

Sources cited when this brand is named
RankSourceCiting answers
1fda.gov1
2nia.nih.gov1
3ods.od.nih.gov1
4trust.nsf.org1
5usp.org1

Named by surface, by question

For the brand's best questions: of each surface's 2 answers, how many named it.

Named by surface, by question
QuestionsChatGPTClaudeGemini
1Which supplement brands are best for older adults?110