Manganese is a mineral found in trace amounts in the human body, mostly in the bones, liver, pancreas and kidneys.
Manganese is important for production of enzymes and antioxidants that fight free radical damage. Manganese is also necessary for nervous system function.
Dietary manganese is found primarily in nuts, seeds, legumes and whole grains.
Daily Requirements
Females
1 to 3 years: 1.2 milligrams per day
4 to 8 years: 1.5 milligrams per day
9 to 18 years: 1.6 milligrams per day
19+ years: 1.8 milligrams per day
Males
1 to 3 years: 1.2 milligrams per day
4 to 8 years: 1.5 milligrams per day
9 to 13 years: 1.9 milligrams per day
14 to 18 years: 2.2 milligrams per day
19+ years: 2.3 milligrams per day
Manganese deficiency appears to be extremely rare. However, supplemental manganese may be beneficial for patients with arthritis, osteoporosis, or diabetes. Always speak to your healthcare provider before taking any dietary supplements.
Sources:
Manganese. Accessed December 29, 2009. http://www.umm.edu/altmed/articles/manganese-000314.htm.
Otten JJ, Hellwig JP, Meyers LD. "Dietary Reference Intakes: The Essential Guide to Nutrient Requirements." Institute of Medicine, 2006.
