About Manganese
Manganese is a cofactor for several enzymes including manganese superoxide dismutase (MnSOD, a key mitochondrial antioxidant), arginase (in the urea cycle), and enzymes involved in bone formation and carbohydrate metabolism. Wholegrains, brown rice, oats, nuts, legumes, leafy greens, and tea are good sources. Plant-based diets typically provide abundant manganese.
Deficiency from diet alone is extremely rare. Experimental deficiency causes impaired growth, skeletal abnormalities, and altered carbohydrate and fat metabolism.
Chronic high exposure — primarily from occupational inhalation (mining, welding) rather than diet — causes manganism, a neurological disorder resembling Parkinson's disease. From food, toxicity is not a concern. The tolerable upper limit is 11 mg/day for adults.
Daily Reference Intake
per European Regulation 1169/2011
= 1420% of daily NRV
used in our database
Foods Containing Manganese
917 foods with recorded data, ranked highest first. Showing 1–100 of 917. Values per 100g fresh weight.
* Values are per 100g fresh weight. % NRV = percentage of EU Nutrient Reference Value. Bar shows relative level compared to the highest value across all foods in the database.