Does magnesium help you sleep?

What we can tell you today: how thoroughly this has been studied.

Well studied

4 studies, including 2 that bring together the results of several trials in people.

5 Repeated evidence 2 studies

4 Large controlled trial 1 study

3 Small study in people 1 study

This says how thoroughly something has been studied — not whether it works for you. What each study actually found is in the study itself, and in the plain-language write-ups we are adding.

Appears under: Hair and nails · Sleep, energy and the brain

The studies

5 Repeated evidence A meta-analysis of effects of vitamin E supplementation alone and in combination with omega-3 or magnesium on polycystic ovary syndrome.
2022 · Scientific reports · 504 participants
5 Repeated evidence Oral magnesium supplementation for insomnia in older adults: a Systematic Review & Meta-Analysis.
2021 · BMC complementary medicine and therapies
4 Large controlled trial Effects of magnesium and potassium supplementation on insomnia and sleep hormones in patients with diabetes mellitus.
2024 · Frontiers in endocrinology · 320 participants
3 Small study in people The effects of magnesium supplementation on abnormal uterine bleeding, alopecia, quality of life, and acne in women with polycystic ovary syndrome: a randomized clinical trial.
2022 · Reproductive biology and endocrinology : RB&E · 64 participants