Manganese (Mn) is element number 25 on the periodic table, is CAS number 7439-96-5 and has an atomic weight of 54.9. It’s a naturally-occurring mineral and found in all three major types of (igneous, sedimentary, and metamorphic) of rock. One of its unique forms is nodules deposited on the surface of the ocean floor. It is the 12th most abundant element in the earth. Chemical forms of manganese include oxides, sulfides, carbonates and silicates are found: the prevalent form is manganese dioxide.
It’s an essential mineral in the human body and responsible for a number of functions including metabolism of glucose and amino acids, bone development and antioxidant enzymes. It also has a role in blood clotting and reduction of inflammation. In fact, it is involved with over 300 metabolic reactions. Excess uptake via food, water or inhalation can be toxic to the nervous system. Calcium, magnesium and iron are elements in the diet that may influence the uptake and metabolism of magnesium. Inadequate dietary manganese has been associated with metabolic disordered, osteoporosis and cardiovascular disease. There is no recommended daily intake, but 2.3 mg (male) and 1.8 mg (female) is considered acceptable. It been suggested that approximately half of the US population may have insufficient manganese in their diet.