Manganese is a trace mineral , which means that it is only needed in very small amounts by the body.  It is used to speed up chemical reactions in the body that involve energy production, fat metabolism and protein metabolism.  Because it breaks down fats and proteins, it is useful for the treatment of diabetes, when fat and protein is often called upon as an energy source for the cells.

It is also part of the synthesis of bone, cartilage and joint fluid.  Manganese helps to calm the nervous system, in conjunction with the vitamins of the B complex.  Manganese supports red blood cells by being a component of their antioxidant defences, through the enzyme superoxide dismutase (SOD).  Manganese is used by natural health practitioners for a variety of conditions including epilepsy, diabetes, iron-deficiency anemia, and osteoporosis.

Chelated manganese supplements are usually found in health food stores. Chelated simply means that manganese is bonded to a protein molecule, for example aspartate, glycinate, gluconate, picolinate, etc.  Manganese is found in a tablet form.

Large doses of calcium and phosphorus inhibit the absorption of manganese.  Manganese is also not absorbed well when it is taken with high fibre foods and foods containing phytic acid (legumes), milk and meat.