Minerals

Manganese

A trace mineral essential for bone health and antioxidant defense.

True deficiency is rare due to widespread availability in plant foods, but suboptimal intake is common in processed-food diets

Why it matters for longevity

Manganese is a cofactor for manganese superoxide dismutase (MnSOD), one of the body's most important mitochondrial antioxidant enzymes. It also supports bone formation, blood clotting, and carbohydrate metabolism. Adequate manganese intake helps protect mitochondria from oxidative damage, which is a central mechanism of aging.

How much you need

RDA

2.3mg for men, 1.8mg for women (adequate intake)

Optimal

Researchers suggest 2-5mg daily from food sources. Excess manganese from supplements or environmental exposure can be neurotoxic.

Signs you might be low

  • Impaired bone growth or density
  • Skin rashes
  • Changes in hair color
  • Altered fat metabolism

Best food sources

FoodPer serving
Mussels (3 oz)5.8mg
Brown rice, cooked (1 cup)1.8mg
Pecans (1 oz)1.3mg
Pineapple (1 cup)1.5mg
Oatmeal, cooked (1 cup)1.4mg

Key research

Li L, Yang X (2018). The essential element manganese, oxidative stress, and metabolic diseases. Oxidative Medicine and Cellular Longevity, 2018, 7580707.

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