Compare supplement forms side-by-side
When you've decided you want a supplement, the next question is usually which form. These guides walk through the most-bought decisions head-to-head: how the forms differ on absorption, evidence base, side-effect profile, and best-fit goal. No sponsorships, no affiliate links.
Magnesium glycinate vs citrate vs L-threonate
Three of the most-bought magnesium forms compared on absorption, GI tolerance, evidence base, and best-fit goal — sleep, constipation, or cognition.
Whey vs casein vs pea protein
Amino-acid completeness, absorption rate, MPS evidence, and digestive tolerance — and what the form difference actually buys you.
5-HTP vs L-tryptophan vs SAMe
Three serotonin-pathway supplements compared. Mechanism, dose, and the drug-interaction profile that decides which (if any) is right for you.
Ashwagandha vs Rhodiola vs Cordyceps
Stress, energy, performance — three of the most-studied adaptogens compared on evidence, time-to-effect, and side-effect profile.
EPA vs DHA vs ALA omega-3
The three omega-3s compared on cardiovascular, cognitive, and inflammatory endpoints — plus the high-dose AFib paradox to know about.
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