Manganese deficiency (medicine)

Manganese deficiency (medicine)
Classification and external resources
Specialty	endocrinology
ICD-10	E61.3
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Manganese deficiency in humans results in a number of medical problems. Manganese is a vital element of nutrition in very small quantities (adult male daily intake 2.3 milligrams). However, in greater amounts manganese, like most metals, is poisonous when eaten or inhaled.

Manganese is a component of some enzymes and stimulates the development and activity of other enzymes. Manganese superoxide dismutase (MnSOD) is the principal antioxidant in . Several enzymes activated by manganese contribute to the metabolism of carbohydrates, amino acids, and cholesterol.

A deficiency of manganese causes skeletal deformation in animals and inhibits the production of collagen in wound healing.

Manganese is found in leafy green vegetables, fruits, nuts, cinnamon and whole grains. The nutritious kernel, called wheat germ, which contains the most minerals and vitamins of the grain, has been removed from most processed grains (such as white bread). The wheat germ is often sold as . Many common vitamin and mineral supplement products fail to include manganese in their compositions. Relatively high dietary intake of other minerals such as iron, magnesium, and calcium may inhibit the proper intake of manganese.

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