Extremely high priority
12ImportantEvidence: mixed
Magnesium glycinate
Evening, ~400mg.
Priority Matrix
The numbers.
Four dimensions, scored 1–6, where six is always the good end: cheapest, quickest, easiest, highest impact. Priority is Impact squared, divided by what it costs you in energy, money and time.
Cost$12/mo
Time10 sec
EnergyEffortless
ImpactModerate
How sure we are
MixedReal studies disagree, or the effects are small and noisy.
Kept separate from the priority score on purpose: confidence in the evidence never raises how worth-it something is.
What we read
- The effect of magnesium supplementation on primary insomnia in elderly: A double-blind placebo-controlled clinical trial
Journal of Research in Medical Sciences · 2012
In 46 older adults with insomnia, 500 mg of magnesium for 8 weeks improved insomnia scores, sleep time, and serum melatonin versus placebo — one small trial.
- Oral magnesium supplementation for insomnia in older adults: a systematic review & meta-analysis
BMC Complementary Medicine and Therapies · 2021
Three RCTs totaling 151 older adults found magnesium slightly improved sleep time and efficiency, but the trials were small and at high risk of bias — the authors called the evidence low-certainty.
Research from University of Medical Sciences, Tehran · McMaster University. We cite their published work. They have no involvement with Anew.
Where this falls down
Still unknown. Glycinate is the form on this card because it is well tolerated, not because a head-to-head trial showed it beats oxide or citrate for sleep; most insomnia trials used other salts.
Topics
Where it fits.
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The gear.
Products that share a topic with this intervention. Same matrix scoring, same restraint.
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