Best Supplements for Conditions

The best testosterone boosters are mostly marketing. See which have real RCT evidence, which only help if you’re deficient, and what actually raises T.

Best supplements for longevity in 2026, ranked by human-trial evidence: EPA, vitamin D, creatine, magnesium, urolithin A, glycine plus NAC, taurine.

The best supplements for ED with modest blood-flow evidence, plus why ED is a cardiovascular warning sign and which male-enhancement pills to avoid.

A naturopathic doctor ranks the best supplements for thinning hair in women: iron, vitamin D, saw palmetto, biotin, and when to see a dermatologist.

A naturopath’s honest read on chamomile for sleep: GABA-A mechanism, 1,500 mg standardized extract trials, the tea vs capsule gap, and who should skip it.

Best supplements for swimmers, ranked by ACSM and AIS evidence: iron, vitamin D, omega-3, caffeine, beta-alanine, and chlorine-pool extras worth a try.

Best supplements for cold and flu season, ranked by RCT evidence: zinc lozenges, elderberry, and what to start at the first tickle of a sore throat.

A registered dietitian on safe sleep supplements during pregnancy: what ACOG-aligned options to consider, what to avoid, and when to call your OBGYN.

A naturopath compares boswellia bioavailability across standard extract, 5-Loxin, AprèsFlex, Casperome phytosome, with cost-per-absorbed-mg math.

Supplements that affect REM sleep: a neurobiology-led guide to N1/N2/N3/REM, what actually changes architecture, and where consumer wearables get it wrong.