Magnesium may boost sleep and brain power, small trial hints
NCT ID NCT07515417
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tested whether taking 400 mg of magnesium citrate daily for 90 days could improve sleep quality and cognitive function in healthy Saudi adults who reported poor sleep. Researchers compared 41 participants who took the supplement to a control group that took nothing. The study measured sleep using a standard questionnaire and thinking speed with a trail-making test.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
- Active substance
- magnesium citrate (400 mg daily)
- What this could lead to
- If it works, this could point toward a simple, low-cost supplement to improve sleep and mental sharpness in healthy adults.
- What could go wrong
- This is a small, early-stage trial with only 41 participants. Results may not apply to everyone, and supplements can cause mild stomach upset.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
-
Umm Al-Qura University
Mecca, Saudi Arabia
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