313 science-backed nutrients
3251 sources considered
Evidence-graded information
Explore by goal or category

Magnesium

Strong study situation·10/10
A higher score indicates better study conditions, but not necessarily effectiveness.

Essential mineral important for nerve, muscle, bone, and cardiovascular health.

dose range
200–400 mg
once or twice daily
Consumption
Take with food to increase tolerance and absorption.
Not fat-soluble.
Best time
Any time of day, though evening dosing may benefit sleep or muscle cramps. Separate from certain medications, like antibiotics and bisphosphonates, by at least 2 hours.
Description

Magnesium is an essential dietary mineral involved in over 300 enzymatic reactions, supporting muscle, nerve, bone, and cardiovascular function. It is naturally present in nuts, seeds, leafy greens, and whole grains, with supplemental forms available for those at risk of deficiency or with increased needs.

benefits
Main effects with level of evidence
Strong
Note on evidence

Well-established through large-scale epidemiological data, clinical trials, and consensus nutritional guidelines.

Supports bone mineral density and bone health

Moderate

Magnesium contributes to the structural development of bone and influences osteoblast and osteoclast activity. Adequate intake is associated with greater bone density and may reduce osteoporosis risk, particularly in postmenopausal women.

Particularly relevant for: older adults · postmenopausal women

Promotes muscle and nerve function, reduces cramps

Moderate

Required for normal muscle contraction and nerve signaling. Supplementation can reduce cramp frequency in pregnancy and some other situations.

Particularly relevant for: athletes · pregnant women · individuals with muscle cramps

Supports healthy blood pressure and heart rhythm

Moderate

Magnesium deficiency is linked to hypertension, arrhythmias, and increased cardiovascular risk. Supplementation may modestly lower blood pressure in deficient individuals.

Particularly relevant for: adults with hypertension · older adults

Prevents and corrects magnesium deficiency

Strong

Essential for individuals with inadequate intake or absorption and those with increased loss; supplementation restores optimal magnesium status.

Particularly relevant for: individuals with low dietary intake · people with gastrointestinal disorders

Last updated:

This information is for educational purposes only and does not replace medical advice.

Follow us on social media

XInstagramTikTok

Copyright © 2026 – All rights reserved by Numevo OÜ

This website is for educational and informational purposes only and does not constitute medical advice or professional services. The information provided should not be used to diagnose or treat any health problem or disease. Persons requiring medical advice should consult a licensed physician.