A form of magnesium

Magnesium glycinate supplements

1,307 magnesium products in the NIH label database list magnesium as magnesium glycinate (9% of the 15,088 magnesium products); their median is 113 mg of magnesium per serving, against 86 mg across all magnesium products; the 202 whose only supplement ingredient is magnesium list a median of 205 mg (DSLD version 9.4.0, January 2026).

How does magnesium glycinate compare with the other forms?

The median amount of magnesium per serving in products naming each form; the count in brackets. The amount is the magnesium the label gives, as printed (the Supplement Facts row normally states the element; a row named as the compound usually gives the compound's weight and is left out of these figures).

Median magnesium per serving by form

Magnesium by formMagnesium oxide100 mg (5,110)Magnesium citrate113 mg (2,739)Magnesium glycinate113 mg (1,307)Magnesium aspartate150 mg (1,038)Magnesium malate100 mg (903)Magnesium carbonate100 mg (401)Magnesium gluconate100 mg (254)Magnesium hydroxide60 mg (211)Magnesium taurate300 mg (139)Magnesium chloride75 mg (95)Magnesium L-threonate144 mg (72)Magnesium lactate55 mg (55)Magnesium orotate71.5 mg (37)
Magnesium by formMagnesium oxide100 mg (5,110)Magnesium citrate113 mg (2,739)Magnesium glycinate113 mg (1,307)Magnesium aspartate150 mg (1,038)Magnesium malate100 mg (903)Magnesium carbonate100 mg (401)Magnesium gluconate100 mg (254)Magnesium hydroxide60 mg (211)Magnesium taurate300 mg (139)Magnesium chloride75 mg (95)Magnesium L-threonate144 mg (72)Magnesium lactate55 mg (55)Magnesium orotate71.5 mg (37)
Magnesium by formMagnesium oxide100 mg (5,110)Magnesium citrate113 mg (2,739)Magnesium glycinate113 mg (1,307)Magnesium aspartate150 mg (1,038)Magnesium malate100 mg (903)Magnesium carbonate100 mg (401)Magnesium gluconate100 mg (254)Magnesium hydroxide60 mg (211)Magnesium taurate300 mg (139)Magnesium chloride75 mg (95)Magnesium L-threonate144 mg (72)Magnesium lactate55 mg (55)Magnesium orotate71.5 mg (37)
Magnesium by formMagnesium oxide100 mg (5,110)Magnesium citrate113 mg (2,739)Magnesium glycinate113 mg (1,307)Magnesium aspartate150 mg (1,038)Magnesium malate100 mg (903)Magnesium carbonate100 mg (401)Magnesium gluconate100 mg (254)Magnesium hydroxide60 mg (211)Magnesium taurate300 mg (139)Magnesium chloride75 mg (95)Magnesium L-threonate144 mg (72)Magnesium lactate55 mg (55)Magnesium orotate71.5 mg (37)
Magnesium by formMagnesium oxide100 mg (5,110)Magnesium citrate113 mg (2,739)Magnesium glycinate113 mg (1,307)Magnesium aspartate150 mg (1,038)Magnesium malate100 mg (903)Magnesium carbonate100 mg (401)Magnesium gluconate100 mg (254)Magnesium hydroxide60 mg (211)Magnesium taurate300 mg (139)Magnesium chloride75 mg (95)Magnesium L-threonate144 mg (72)Magnesium lactate55 mg (55)Magnesium orotate71.5 mg (37)

Source: Supplement Facts rows and their forms, NIH ODS Dietary Supplement Label Database version 9.4.0, current labels.

Products
1,307958 on the market
Median magnesium per serving
113 mgall magnesium products: 86 mg
Share of magnesium products
9%1,307 of 15,088

Is the amount the magnesium or the whole magnesium glycinate?

A Supplement Facts row normally states the magnesium itself (a row like "Magnesium (as magnesium glycinate)"); a row named as the compound (a row like "Magnesium glycinate") usually states the compound's weight, which includes what the magnesium is bound to and is larger than the magnesium it supplies. The front of a bottle may print either. Of the 1,307 products here, 1,295 give the magnesium in its own row (14 of them an amount far outside what other labels list, or one their own %DV disagrees with); 1 gives only a row named as the compound, left out of the medians and counts on this site; 11 give no amount of their own or one in another unit.

The adult Tolerable Upper Intake Level for magnesium is 350 mg a day; it covers magnesium from supplements and medicines only, not food or water. At the most servings their labels direct, 270 of the 1,281 magnesium glycinate products with a plausible amount (21.1%) give more than that.

Source: Supplement Facts rows of each product's current label, NIH ODS Dietary Supplement Label Database version 9.4.0; upper limit: Institute of Medicine Dietary Reference Intakes (2011) (what counts as plausible).

What else do these products contain?

Ingredients most often listed alongside it, with the median amount in these products and in all products
IngredientShare of these productsMedian hereMedian, all products
Zinc52% 12 mg11 mg
Calcium51% 130 mg115 mg
Vitamin B650% 12 mg6 mg
Vitamin C46% 225 mg100 mg
Vitamin D45% 20 mcg15 mcg
Vitamin B1243% 100 mcg36 mcg
Manganese41% 2 mg2 mg
Niacin40% 25 mg20 mg
Selenium39% 70 mcg55 mcg
Chromium38% 150 mcg100 mcg

Which products are they?

60 of the 1,307 (on-market products first, the newest label first), ordered by the amount of magnesium per serving, largest first; an amount that looks like a slip or a compound's weight comes last, marked.

Source: NIH ODS Dietary Supplement Label Database version 9.4.0; the form each label names for its row. Daily Values: the FDA's Daily Value page.

Which brands make them?

Kirkman (56), Emerald Labs (34), Metagenics (27), Solgar (26), SuperNutrition (25), Klaire Labs (25), Metabolic Maintenance (20), Biotics Research Corporation (18), Bluebonnet (18), Moss Nutrition (18).

Where next?