Know What
You're
Taking.
The evidence behind every supplement: clinical studies, dosage guides, side effects, and honest ratings. No marketing. Just science.
10+
Supplements
50+
Studies Cited
100%
Independent
Most Researched
The Essentials
Creatine
The most researched performance supplement in existence
Vitamin D
The sunshine vitamin essential for immunity, bones, and mood
Omega-3
Essential fatty acids for heart, brain, and inflammatory balance
Magnesium
The mineral involved in over 300 enzymatic reactions
Browse by Goal
What Are You Optimizing For?
Fitness & Recovery
Performance, strength, and post-workout recovery
General Health
Immune support, energy, and everyday wellness
Weight Loss
Metabolism, thermogenesis, and fat oxidation
Cognitive
Focus, memory, and mental clarity
Sleep & Stress
Rest, relaxation, and cortisol management
Bone & Joint
Structural support, cartilage, and mobility
Longevity
Anti-aging, cellular health, and longevity protocols
Our Standards
Science, Not Marketing
We cut through the supplement industry noise to give you only what the research actually supports.
Peer-Reviewed Research
Every claim is backed by citations from PubMed, Cochrane Reviews, and top clinical journals. We link directly to the studies.
Transparent Evidence Ratings
We rate each supplement on a 1–10 evidence scale, clearly distinguishing Strong, Moderate, Limited, and Emerging evidence.
Third-Party Testing
We highlight supplements with independent certifications (NSF, Informed Sport, USP) so you know what you're buying is verified.
Continuously Updated
Our database is reviewed and updated as new research emerges. No stale information, only current science.
Important
Not Medical Advice
KnowYourSupplements provides educational information only. This content does not constitute medical advice, diagnosis, or treatment. Always consult a qualified healthcare professional before starting any supplement regimen.