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Manganese (MN) is an essential trace mineral that plays and important part in normal brain functioning. It is useful in the treatment of many nervous system disorders including Alzheimer's disease, and schizophrenia. Our understanding of manganese is still incomplete.

What are the functions of manganese?

Manganese is:

What are the symptoms of a manganese deficiency?

Manganese deficiency symptoms include:

Food sources of manganese

The following foods are a good source of manganese: cereals, tea, green leafy vegetables, whole wheat breads, liver, vegetables and nuts.

Therapeutic uses

Manganese is used in the following conditions:


Manganese is best taken as part of a good multivitamin and mineral supplement. Doses of 2 to 5 mg daily are considered adequate, but up to 10 mg is thought to be safe.

Special note

Toxicity is rare, but its symptoms may include: lethargy, involuntary movements, posture problems and eventually coma. Manganese is one of the least toxic trace mineral as it is readily excreted from the body.

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Bland, J. 1996, Contemporary Nutrition. J & B Associates.

Davies, S. and A. Stewart., 1997, Nutritional Medicine. Pan.

Holden, S., Hudson, K., Tilman, J. & D. Wolf, 2003, The Ultimate Guide to Health from Nature. Asrolog Publication.

Pressman, A. and S. Buff, 2000, The Complete Idiot's Guide to Vitamins and Minerals. (2nd Ed.) Alpha Books.

Soothill, R. 1996, The Choice Guide to Vitamins and Minerals. A Choice Book Publication.

Sullivan, K. 2002, Vitamins and Minerals: A Practical Approach to a Health Diet and Safe Supplementation. Harper Collins.

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