Understanding Manganese: Normal vs Optimal Ranges

?What is Manganese?

Manganese is an essential trace mineral required for the function of several key enzymes including manganese superoxide dismutase (MnSOD), arginase, and pyruvate carboxylase. It plays roles in bone formation, amino acid metabolism, carbohydrate metabolism, and antioxidant defence. Dietary sources include nuts, whole grains, legumes, and leafy vegetables.

!Why It Matters

Manganese deficiency is rare but can cause bone abnormalities, impaired glucose tolerance, and skin rash. Manganese toxicity (manganism) from occupational exposure (welding, mining, battery production) or excessive supplementation causes a Parkinson's-like neurological syndrome with tremor, rigidity, and psychiatric symptoms. Manganese is neurotoxic at elevated levels.

Reference Ranges

Lab normal ranges may vary between laboratories. Optimal and longevity targets are based on research literature and should be interpreted with your physician.

Symptoms of Imbalance

• Deficiency: rare — bone abnormalities, impaired wound healing
• Toxicity (manganism): tremor, rigid gait, psychiatric disturbances, resembling Parkinson's

How to Improve Your Levels

• 1Dietary sources: whole grains, legumes, nuts, spinach, pineapple
• 2Avoid supplementing manganese beyond tolerable upper intake levels
• 3Occupational workers should use respiratory protection to avoid inhalation

When to Test

Occupational health screening (welders, miners); suspected manganism; TPN (total parenteral nutrition) monitoring.

Related Biomarkers