15 modules · Core track
Each module includes a public explainer, a clinical deep-dive, claim-graded evidence, a case, a myth-buster, quiz questions, and flashcards. Switch tracks in the sidebar to unlock different layers.
Why Supplements Matter — Honest Framing
From genuine deficiency rescue to a $200B marketing engine — what supplements actually do.
Regulation: DSHEA, GMP & Third-Party Testing
What 'FDA-registered' actually means, and how to read a label without being fooled.
Evidence Tiers — From DRI to RCTs to Influencers
DRI/RDA basics, GRADE, supplement RCT history, and a working hierarchy.
Pharmacology of Oral Supplements
Absorption, bioavailability, formulations, and why 'mg on the label' is rarely 'mg in the bloodstream'.
Fat-Soluble Vitamins — A, D, E, K
Where they actually help, where they don't, and where they cause harm.
Water-Soluble Vitamins — B-complex & C
B12, folate, thiamine, B6 toxicity, and the persistent myth of high-dose vitamin C.
Minerals — Iron, Zinc, Magnesium, Calcium, Selenium
Replacing what's missing, and the surprising harm of population-wide supplementation.
Omega-3 Fatty Acids — EPA, DHA & the AF Signal
From REDUCE-IT to STRENGTH and OMEMI — what high-dose omega-3 actually does.
Probiotics & the Gut — Strain-Specific Reality
Why 'probiotic' is too broad a word to support most claims.
Herbals & Botanicals — Curcumin, St John's Wort, Ashwagandha
Where botanicals have real RCT evidence — and real drug interactions.
Performance & Cognition — Creatine, Caffeine, Nootropics
Where ergogenic and cognitive supplements have real data, and where they're hype.
Drug-Supplement Interactions & Clinical Counseling
Reconciling supplements with medications — the highest-value counseling skill.