The symbol for Manganese is Mn, its atomic # is 25 with an atomic mass of 55. Manganese is a required trace mineral for all known living organisms. Manganese is an antioxidant and also contributes to many health promoting activities such as wound healing, metabolism and bone development. Manganese helps the body absorb key nutrients as well as helps to synthesize fatty acids and cholesterol, maintain a healthy thyroid and healthy nerves. It also helps maintain normal blood sugar levels.
On the other hand, Manganese can be toxic at high levels, especially if inhaled directly. When this occurs over time (as in mines), the person can develop symptoms similar to Parkinson's disease with cognitive and motor impairments which are often irreversible. Manganese when inhaled goes directly to the brain which surpassing the important metabolic processing that is required by the liver in normal functioning. Individuals with impaired liver function due to diseases like cirrhosis may lose some ability to metabolize manganese and it can build up in the body.
Good sources of manganese in the diet are pineapple, whole grains, nuts and leafy vegetables. You can find more information about the merits of manganese here at the Linus Pauling Institute.
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