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Magnesium Supplements

Updated May 22, 2026
Full rankings (5)
Best Overall

MegaFood Magnesium Glycinate, Malate, Citrate

A triple-form blend that delivers broad benefits—muscle relaxation, heart health, and nervous system support—without the digestive distress many magnesium users experience. Real owners report it's the rare magnesium that doesn't cause loose stools.

Best for Sleep

Thorne Magnesium Bisglycinate Powder

A highly absorbable powder form specifically formulated for sleep and relaxation, with NSF certification and third-party testing for purity. Experts consistently recommend this for its calming effects and bioavailability.

Best Value

Nature Made Magnesium Glycinate

A budget-friendly, USP-verified option that delivers high absorption without the digestive side effects. Real users praise it for being gentle on the stomach while maintaining quality standards.

Best for Muscle Cramps

Nutricost Magnesium Citrate Powder

A highly absorbable citrate form in powder format that excels at soothing muscle soreness and cramps. Healthline's tester specifically noted relief from sore muscles, and it's one of the most affordable options available.