Evidence-first supplement research
See what top health experts claim —
then see what the science actually shows.
Search any supplement. We extract specific claims from Huberman, Attia, Patrick and others, compare each claim against PubMed research, and show you where they align — and where they don't.
We lead with supplements that have enough expert coverage and PubMed research to be useful. Experimental or thinly-covered topics stay out of the main library until the evidence base is stronger.
35 supplements4,673 claims analyzed700 studies
Not medical advice · An evidence navigator
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😴 Sleep — 6 supplements
Magnesium
D·49/100·Limited
An essential mineral involved in over 300 enzymatic reactions. Widely studied for sleep, anxiety, and metabolic health.
315 expert mentions21 studies
Melatonin
D·49/100·Limited
A pineal hormone that regulates circadian rhythm and sleep timing. Most experts recommend much lower doses (0.1–0.5mg) than typical OTC products (5–10mg). Best evidence for jet lag and circadian phase shifts.
216 expert mentions20 studies
L-Theanine
C·51/100·Fair
An amino acid found in green tea. Studied for calm alertness, anxiety reduction, and synergistic effects with caffeine.
191 expert mentions20 studies
Glycine
C·53/100·Fair
The simplest amino acid. Studied for sleep quality (specifically slow-wave sleep), collagen synthesis, and as a glycine-methionine balance strategy for longevity.
176 expert mentions20 studies
Ashwagandha
C·51/100·Fair
An Ayurvedic adaptogen studied for stress and cortisol reduction, anxiety, sleep quality, and testosterone in men. Evidence is growing but requires replication in larger trials.
356 expert mentions20 studies
Taurine
C·51/100·Fair
A conditionally essential amino acid. Recent research highlights its role in aging — taurine levels decline with age. Studied for cardiovascular health, muscle function, and longevity.
156 expert mentions20 studies
How this works
Expert claims, attributed
We extract specific claims from podcasts and transcripts by Huberman, Attia, Patrick, and others. Every claim is sourced to an episode with a link.
Compared to PubMed evidence
Each claim is compared against relevant published research — RCTs, systematic reviews, and meta-analyses. Evidence quality is rated and shown.
Transparent uncertainty
We show what we don't know as clearly as what we do. Evidence gaps, conflicting studies, and extraction confidence are all visible.
Quality standard
Pages are most useful when they combine attributed expert claims, PubMed-linked research, and an explicit evidence rating. Low-coverage supplements are not promoted in the public index until they have enough source material to avoid giving a false sense of certainty.