supplements
Magnesium for sleep quality
Does taking magnesium before bed actually help you fall asleep faster or sleep through the night?
grade-moderate
Two or more randomised placebo-controlled trials from independent groups, 200+ participants.
nootropics
L-theanine and caffeine for focus
Does the combination beat caffeine on its own — and how would we know?
supplements
Ashwagandha for stress
Does ashwagandha actually make people feel less stressed?
longevity
Resveratrol for metabolic health
Does resveratrol improve glycemic control in people with type 2 diabetes?
longevity
NMN for slowing aging
Does taking NMN improve any measured health outcome in humans?