Brand profile

NSF International

An American product testing, inspection, and certification organization founded in 1944, focused on public health and safety.

7 questions, 5 categoriesAs of Nov 12, 2026

Best category rank
#4
Vitamins & Supplements, of 190
Questions
7
5 categories
Answers naming it
22/42
Of the answers measured on this brand's questions

Visibility by category

CategoriesCategory rankQuestionsScore
Vitamins & Supplements#4of 1903120.1
Health & Wellness Products#5of 1,635149.7
Inner Beauty#53of 6916.5
Sports Nutrition#136of 242110.0
Eye & Vision Care#199of 20313.6

Ranking by question

Named alongside in Vitamins & Supplements

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

Named alongside in Vitamins & SupplementsBrands named in the same answers as NSF International in the last four weeks, counted in answers.Nature Made: named in 19 answersNature MadeUSP: named in 15 answersUSPNOW Foods: named in 14 answersNOW FoodsNSF International: named in 15 answersNSF InternationalKirkland Signature: named in 14 answersKirkland SignatureNordic Naturals Ultimate Omega: named in 7 answersNordic Naturals Ultimate OmegaThorne: named in 17 answersThorneNature Made Prenatal Multi + DHA: named in 6 answersNature Made Prenatal Multi + DHAConsumerLab: named in 12 answersConsumerLabPure Encapsulations: named in 13 answersPure EncapsulationsCulturelle: named in 6 answersCulturelleNature Made D3: named in 4 answersNature Made D3Carlson Very Finest Fish Oil: named in 6 answersCarlson Very Finest Fish OilLife Extension: named in 9 answersLife ExtensionSeed DS-01: named in 5 answersCentrum Silver Adults 50+ multivitamin: named in 5 answersRitual Essential Prenatal: named in 5 answersRitual Essential PrenatalNutricost: named in 4 answersThorne Magnesium Bisglycinate: named in 4 answersThorne Magnesium BisglycinatePure Encapsulations Magnesium Glycinate: named in 4 answersPure Encapsulations Magnesium GlycinateThorne Vitamin D/K2 Liquid/Capsules: named in 4 answersThorne Vitamin D/K2 Liquid/CapsulesPure Encapsulations Vitamin D3: named in 4 answersNSF Certified for Sport: named in 7 answersGarden of Life: named in 9 answersGarden of LifeNature Made Multi Complete: named in 2 answersNature Made Multi CompleteHiya Kids Daily Multivitamin: named in 5 answersHiya Kids Daily MultivitaminRitual Synbiotic+: named in 3 answersRitual Synbiotic+Doctor’s Best: named in 4 answersNordic Naturals: named in 9 answersNordic NaturalsThorne Basic Prenatal: named in 3 answersThorne Basic Prenatal
  • Answers naming the brand
  • 2
  • 6
  • 19
  • Answers naming both
  • 1
  • 15
Named alongside in Vitamins & SupplementsBrands named in the same answers as NSF International in the last four weeks, counted in answers.Nature Made: named in 19 answersNature MadeUSP: named in 15 answersUSPNOW Foods: named in 14 answersNOW FoodsNSF International: named in 15 answersNSF InternationalKirkland Signature: named in 14 answersKirkland SignatureNordic Naturals Ultimate Omega: named in 7 answersNordic Naturals Ultimate OmegaThorne: named in 17 answersThorneNature Made Prenatal Multi + DHA: named in 6 answersConsumerLab: named in 12 answersConsumerLabPure Encapsulations: named in 13 answersPure EncapsulationsCulturelle: named in 6 answersCulturelleNature Made D3: named in 4 answersNature Made D3Carlson Very Finest Fish Oil: named in 6 answersLife Extension: named in 9 answersLife ExtensionSeed DS-01: named in 5 answersCentrum Silver Adults 50+ multivitamin: named in 5 answersRitual Essential Prenatal: named in 5 answersNutricost: named in 4 answersThorne Magnesium Bisglycinate: named in 4 answersPure Encapsulations Magnesium Glycinate: named in 4 answersThorne Vitamin D/K2 Liquid/Capsules: named in 4 answersPure Encapsulations Vitamin D3: named in 4 answersNSF Certified for Sport: named in 7 answersGarden of Life: named in 9 answersGarden of LifeNature Made Multi Complete: named in 2 answersNature Made Multi CompleteHiya Kids Daily Multivitamin: named in 5 answersHiya Kids Daily MultivitaminRitual Synbiotic+: named in 3 answersRitual Synbiotic+Doctor’s Best: named in 4 answersNordic Naturals: named in 9 answersNordic NaturalsThorne Basic Prenatal: named in 3 answers
  • Answers naming the brand
  • 2
  • 6
  • 19
  • Answers naming both
  • 1
  • 15
  1. 125USP
  2. 218ConsumerLab
  3. 317Nature Made
  4. 416Thorne
  5. 513Pure Encapsulations
  6. 610Garden of Life
  7. 79NOW Foods
  8. 88Kirkland Signature
  9. 98Ritual
  10. 107Informed Choice
  11. 115Nordic Naturals
  12. 125Life Extension
  13. 135NSF Certified for Sport
  14. 144Centrum Silver Adults 50+ multivitamin
  15. 154Pure Encapsulations Magnesium Glycinate
  16. 163Informed-Sport
  17. 173MegaFood
  18. 183Centrum
  19. 193Thorne Magnesium Bisglycinate
  20. 202Klean Athlete
Named alongside
BrandAnswers naming the brandNamed alongside
Nature Made19Thorne (15), Kirkland Signature (11), Pure Encapsulations (11)
USP15NSF International (14), ConsumerLab (11), Thorne (9)
NOW Foods14Nature Made (9), Kirkland Signature (8), Pure Encapsulations (7)
NSF International15USP (14), ConsumerLab (11), Thorne (9)
Kirkland Signature14Nature Made (11), NOW Foods (8), Thorne (8)
Nordic Naturals Ultimate Omega7Carlson Very Finest Fish Oil (6), Thorne Vitamin D/K2 Liquid/Capsules (1), Pure Encapsulations (1)
Thorne17Nature Made (15), Pure Encapsulations (12), Garden of Life (9)
Nature Made Prenatal Multi + DHA6Ritual Essential Prenatal (5), Thorne Basic Prenatal (3)
ConsumerLab12USP (11), NSF International (11), Pure Encapsulations (8)
Pure Encapsulations13Thorne (12), Nature Made (11), ConsumerLab (8)
Culturelle6Seed DS-01 (5), Ritual Synbiotic+ (3), NOW Foods (1)
Nature Made D34Pure Encapsulations Vitamin D3 (3), Thorne Vitamin D/K2 Liquid/Capsules (2)
Carlson Very Finest Fish Oil6Nordic Naturals Ultimate Omega (6)
Life Extension9Kirkland Signature (7), Nature Made (7), Thorne (6)
Seed DS-015Culturelle (5), Ritual Synbiotic+ (3)
Centrum Silver Adults 50+ multivitamin5Thorne (5), Nature Made (4), USP (4)
Ritual Essential Prenatal5Nature Made Prenatal Multi + DHA (5), Thorne Basic Prenatal (3)
Nutricost4NOW Foods (4), Kirkland Signature (4), Doctor’s Best (3)
Thorne Magnesium Bisglycinate4Pure Encapsulations Magnesium Glycinate (3), USP (3), NSF International (3)
Pure Encapsulations Magnesium Glycinate4USP (4), NSF International (4), ConsumerLab (3)
Thorne Vitamin D/K2 Liquid/Capsules4Pure Encapsulations Vitamin D3 (3), Pure Encapsulations (2), Nature Made D3 (2)
Pure Encapsulations Vitamin D34Thorne Vitamin D/K2 Liquid/Capsules (3), Nature Made D3 (3), NOW Foods (1)
NSF Certified for Sport7USP (5), Kirkland Signature (4), Pure Encapsulations (4)
Garden of Life9Thorne (9), Nature Made (8), Pure Encapsulations (7)
Nature Made Multi Complete2Hiya Kids Daily Multivitamin (1)
Hiya Kids Daily Multivitamin5Nature Made Multi Complete (1)
Ritual Synbiotic+3Seed DS-01 (3), Culturelle (3)
Doctor’s Best4NOW Foods (4), Nutricost (3), Kirkland Signature (3)
Nordic Naturals9Pure Encapsulations (8), Thorne (8), Nature Made (8)
Thorne Basic Prenatal3Nature Made Prenatal Multi + DHA (3), Ritual Essential Prenatal (3)

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
1healthline.comreference15
2consumerlab.com6
3medicalnewstoday.com6
4youtube.comsocial6
5health.usnews.com6
6forbes.commedia5
7garagegymreviews.com5
8store.eunatural.com5
9goodrx.com4
10fortune.com4

Named by surface, by question

For the brand's best questions: of each surface's 1 answers, how many named it.

Named by surface, by question
QuestionsGoogle AI OverviewsChatGPTClaudeGeminiGoogle AI ModeMicrosoft Copilot
1Which vitamin brands are best for daily nutrition?110111
2What are the most trusted vitamins and supplements?101110
3What are the best magnesium supplements?101111
4Which supplement brands are best for older adults?101111
5What are the best sports nutrition products?001000
6What are the best collagen powders?000010
7What are the best eye vitamins?000001