Sleep
Trouble falling or staying asleep
6 supplements with evidence · ordered by relevance
Magnesium
An essential mineral involved in over 300 enzymatic reactions. Widely studied for sleep, anxiety, and metabolic health.
Melatonin
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.
L-Theanine
An amino acid found in green tea. Studied for calm alertness, anxiety reduction, and synergistic effects with caffeine.
Glycine
The simplest amino acid. Studied for sleep quality (specifically slow-wave sleep), collagen synthesis, and as a glycine-methionine balance strategy for longevity.
Ashwagandha
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.
Taurine
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.
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