
Manganese is an essential trace mineral involved in bone formation, connective tissue synthesis, and the function of the antioxidant enzyme superoxide dismutase (MnSOD). It supports normal energy metabolism, helps maintain strong bones, and protects cells from oxidative stress. Manganese is found in nuts, whole grains, and green leafy vegetables, but supplementation ensures consistent and adequate intake.
The recommended daily amount for adults is 2-5 mg. Most people get sufficient manganese from a varied diet. The tolerable upper limit is 11 mg per day — prolonged excessive intake can damage the nervous system. Supplements typically contain 2-3 mg per serving.
Manganese deficiency is rare but may manifest as weakened bones, slow wound healing, skin inflammation, and impaired blood sugar regulation. People who consume very few whole grains and nuts are at higher risk. Deficiency can be confirmed through a blood test.
These are different minerals despite their similar names. Magnesium (Mg) is a macromineral needed in hundreds of milligrams daily. Manganese (Mn) is a trace mineral needed in just milligrams. Both are essential but serve different functions in the body.