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Effect of Magnesium Supplementation on Sleep Quality and Cognitive Function in Saudi Adults

NCT07515417 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 41

Last updated 2026-08-18

No results posted yet for this study

Summary

The goal of this clinical trial was to evaluate whether magnesium citrate supplementation improved sleep quality and cognitive function in healthy Saudi adults. It also assessed the effects of magnesium on selected blood markers.

The main questions it aimed to answer were:

Did magnesium supplementation improve sleep quality? Did magnesium supplementation improve cognitive function?

Researchers compared participants who received magnesium citrate to a control group that did not receive any intervention to evaluate its effects.

Participants:

Took magnesium citrate (400 mg daily) for 90 days (two capsules: one in the afternoon and one 1-2 hours before bedtime)

Visited Umm Al-Qura University twice (before and after the intervention) for:

Sleep quality assessment Cognitive function assessment Blood sample collection to measure serum magnesium and HbA1c

The control group did not receive any supplementation during the study period.

Conditions

  • Healthy
  • Health Adult Subjects
  • Healthy Participants
  • Healthy Adult Participants
  • Healthy Young Adults
  • Healthy (Controls)
  • Healthy Women
  • Healthy Adult Male
  • Healthy Adult Females
  • Healthy Adult
  • Healthy Adult Male Subjects
  • Healthy Adult Female Participants
  • Poor Sleep Quality
  • Poor Sleeping Quality

Interventions

DIETARY_SUPPLEMENT

Magnesium 400Mg

Magnesium supplementation was administered to eligible participants using magnesium citrate tablets (Solgar®, USA), a highly bioavailable form commonly used in research. The supplements were purchased from Al Nahdi Pharmacy (Saudi Arabia) and selected based on previous studies demonstrating good absorption and effectiveness. Participants received a total daily dose of 400 mg elemental magnesium. Eligible participants were instructed to take the supplement for 90 days, divided into two doses: one in the afternoon and one 1-2 hours before bedtime. The supplement was provided in bottles containing 120 tablets. Participants were asked to maintain their usual diet and lifestyle. Compliance was monitored using participant diaries and by counting remaining capsules returned at the follow-up visit.

Sponsors & Collaborators

  • Umm Al-Qura University

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
18 Years
Max Age
50 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2024-10-01
Primary Completion
2026-01-25
Completion
2026-06-30

Countries

  • Saudi Arabia

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07515417 on ClinicalTrials.gov