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Research Brief

Magnesium for insomnia: promising but low-certainty evidence

A review of randomized trials in older adults found magnesium may reduce sleep-onset latency, but the evidence quality was rated low to very low and trials had bias concerns.

Sleep SupportMagnesiumSystematic review and meta-analysis
Source linkedLimits includedCheck label before buyingNot medical advice

What the study looked at

Topic
Sleep Support
Ingredient
Magnesium
Study type
Systematic review and meta-analysis
Published
2021

What it may mean

Magnesium can be a reasonable sleep shortlist candidate, but the form, elemental amount, and safety context matter.

What it does not prove

It does not prove magnesium treats insomnia in all adults or that magnesium is appropriate when kidney disease or medication timing is relevant.

What shoppers should check

  • Compare elemental magnesium, not just compound weight.
  • Choose form based on tolerance and goal.
  • Check kidney disease and medication timing, especially thyroid medicine and certain antibiotics.

Source

BMC Complementary Medicine and Therapies / PubMed (2021)

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