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Magnesium

Magnesium

Magnesium is an essential mineral and cofactor for more than 300 enzymes involved in energy production, muscle and nerve function, and bone health. The adult RDA is about 400-420 mg for men and 310-320 mg for women. The 350 mg upper limit applies only to supplemental magnesium.

Unit
mg
RDA (adult)
400 mg
Upper limit
350 mg
Functions
Cofactor for over 300 enzyme systems, Energy (ATP) production, Muscle and nerve function, Bone structure and DNA synthesis
Food sources
Nuts, Seeds, Whole grains, Leafy greens, Legumes, Dark chocolate
Deficiency
Muscle cramps, fatigue, abnormal heart rhythms, numbness, and in severe cases seizures.
Excess
Upper limit applies to supplemental magnesium; excess from supplements causes diarrhea, nausea, and cramping.

Richest foods

Pumpkin Seeds Nuts & seeds 592 mg
Flaxseed Nuts & seeds 392 mg
Sesame Seeds, Whole Nuts & seeds 351 mg
Sunflower Seeds, Dried Nuts & seeds 325 mg
Cashews, Raw Nuts & seeds 292 mg
Almonds, Raw Nuts & seeds 270 mg
Peanuts, Raw Legume 168 mg
Walnuts, English Nuts & seeds 158 mg
Peanut Butter, Smooth Nuts & seeds 154 mg
Spinach, Cooked Vegetable 87 mg
Spinach, Raw Vegetable 79 mg
Whole Wheat Bread Grain 75 mg

Amount per food's listed serving.

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