Magnesium Glycinate
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Magnesium bound to the amino acid glycine, one of several magnesium forms used in supplements.
Why it’s used
Taken to add to dietary magnesium intake.
What the evidence is for
correcting magnesium deficiency.
What the evidence says
Supplementation corrects magnesium deficiency. Beyond repletion the evidence is mixed — modest blood-pressure effects and some support for migraine prevention, with conflicting results for blood-sugar control. The NIH fact sheet does not evaluate the glycinate form specifically; common claims that it is better absorbed or gentler on the stomach than other forms are not established there.
Dose studied
up to 350 mg — supplemental tolerable upper intake level is 350 mg/day; adult RDA from all sources is 310–420 mg, per NIH ODS. No lower bound is set because diet contributes most intake..
Context
The adult RDA (from all sources, food included) is 310–420 mg. The tolerable upper intake level for magnesium from supplements alone is 350 mg/day; more than that commonly causes diarrhea.
Educational information, not medical or safety advice. Consult a professional for allergies or medical concerns.