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Supplements & Vitamins
Third-party tested vitamins, minerals, and nutritional supplements
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◈How We Evaluated This Category
✓What to Look For
- •Third-party certifications (NSF, USP, ConsumerLab, Informed Sport)
- •Bioavailable forms of nutrients (methylfolate vs folic acid, chelated minerals)
- •Transparent Certificates of Analysis (COAs) available on request
- •GMP-certified manufacturing facilities
- •Dosages matching amounts used in clinical trials
✗Red Flags to Avoid
- •No third-party testing or certification
- •Proprietary blends that hide individual ingredient dosages
- •Mega-doses exceeding Tolerable Upper Intake Levels (ULs)
- •Heavy metal contamination risks in unverified products
- •Marketing claims without scientific evidence
📋Our Methodology
Products evaluated on third-party certification status, bioavailable ingredient forms, clinical evidence for dosages used, manufacturing transparency, and value per effective dose. Prioritized brands with NSF/USP verification, published COAs, and formulations based on peer-reviewed research.
🏅Key Certifications to Know
NSF Certified for Sport — Tested for 280+ banned substances, verified label accuracy, GMP facility audit
USP Verified — Independent verification of identity, strength, purity, and dissolution standards
ConsumerLab Approved — Passed independent testing for contamination and label accuracy
IFOS 5-Star — International Fish Oil Standards - highest rating for purity, potency, and freshness in omega-3s
Clean Label Project — Tested for 400+ contaminants including heavy metals, pesticides, and plasticizers