What does the evidence actually say about your supplements?
Tell us what you are taking and what you are trying to accomplish. Get a plain read on whether the research supports the match — for your specific goal.
Goal-specific evidence
No products to sell
Written by a PA-C
What this tool does — and doesn't do
Plain Supplement evaluates whether the published evidence supports a supplement for your stated goal. It does not assess safety, dosing, or drug interactions. For those questions — bring your full list to your clinician or pharmacist. This tool has one job: does the research actually back what you are hoping for?
Step 1 of 2
What are you using supplements for?
Step 2 of 2
Which supplements are you taking?
This evaluates evidence for your stated goals — not safety or interactions. Bring your full list to your provider or pharmacist for a complete review.
Plain Supplement · Your Results
Here is what the evidence says.
Strong — consistent clinical evidence for this goal
Mixed — some evidence, not definitive
Weak — limited or inconsistent evidence for this goal
Your supplements, evaluated for your goals
Worth asking at your next visit
Plain Medicine perspective
Weak evidence for your goal does not always mean a supplement is useless — it means the research has not confirmed the claim yet, or the effect is too small to be clinically meaningful. What you deserve to know is the difference between what the label suggests and what the studies actually show.
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Plain Supplement is an educational tool. Evidence tiers reflect the published research matched to your stated goals — not a substitute for individualized medical advice. This tool does not assess safety, dosing, or interactions between supplements or medications. Always discuss your supplement list with your clinician or pharmacist. · Plain Medicine · Kyle Keith, PA-C