Resistance Training
Know what actually works.
47 supplements and 29 protocols, 35 goals. Each one scored in XP for how strong the evidence is, not how popular it is online, using 506 published research papers.
Aging
Cognition
Depression & Anxiety
Digestive Health
Energy & Performance
Heart Health
Immune & Cellular Health
Men's Sexual Health
Metabolic Health
Muscle & Strength
Pain & Inflammation
Skin & Hair
Sleep
Weight Management
Women's Sexual Health
One number per goal.
XP is not a star rating for a supplement. It is a score for one supplement and one goal.
XP combines how reliable the research is with how much difference it usually makes. Higher means stronger evidence for that supplement and that goal.
Limited<15 XPModest15–27 XPModerate28–44 XPReliable45–69 XPHigh70+ XP
New evidence, in your inbox.
We email when we add a supplement or change a score. Now and then we also share behind-the-scenes notes, early looks at features we're testing, and other interesting finds. No spam.
