Supplement finder
Which supplements actually work, and at what dose?
Pick a goal and our dietitian's evidence check shows what's worth taking, what to skip, and how the products we've reviewed measure up.
What would you like help with?
How we check a supplement
- The right ingredient: one with human research for your goal, not just a trendy name.
- The right dose: close to the amounts used in studies. Many products use a fraction of it.
- Full disclosure: every amount listed. A “proprietary blend” hides how much you get.
- Safe amounts: under the daily upper limits set by the National Academies.
- Independent testing: a USP, NSF or Informed Choice seal means a lab checked what's inside.
Why third-party testing matters
In the US, supplements don't need FDA approval before they're sold, and the FDA doesn't check that labels are accurate. Independent testing programs like USP Verified, NSF Certified and Informed Choice buy products, test what's in them, and check for contaminants. It's the closest thing to a quality guarantee you can get.
Eating well covers most needs. Check your protein target or read our nutrition guides.
This tool is for general education, not medical advice. Supplements can interact with medications and health conditions. Talk to your doctor or pharmacist before starting one, especially if you are pregnant, breastfeeding, take prescription medication, or have a chronic condition.