Magnesium for structure and metabolism

Magnesium is an essential mineral that is involved in over 300 metabolic reactions in the body. The adult human body normally contains 25 grams of magnesium which is distributed as follows:

65% Skeleton
27% Muscle
7% Other cells
1% Outside cells

The metabolic reactions for magnesium include: Energy production from the metabolism of fats and carbohydrates; Synthesis of essential molecules such as nucleic acid (RNA and DNA) and glutathione (an anti-oxidant); a structural role in bones, cell membranes and chromosomes and ion transport across cell membranes.

Other nutritional s interact with magnesium in ways which can affect absorption. High doses of zinc can decrease magnesium absorption. High doses of fiber can reduce utilization of magnesium. Protein in high doses will increase magnesium absorption and low doses will decrease the absorption.

The RDA (Recommended Daily Allowance) for adults 31 years of age and older is 420 mg for males and 320 mg for females. Recent studies show that most Americans (68%) do not consume the RDA and 19% consume less than half the RDA. In addition, the diet of older Americans is likely to be lower in magnesium and the absorption of magnesium decreases with age so it is likely that most Americans and particularly older Americans are not consuming enough magnesium and should consider supplementation.

The highest levels of magnesium occur in green leafy vegetables and in unrefined grains and nuts

Return from magnesium to minerals.