Manganese participates in the formation of healthy bones and cartilage. Collagen in skin cells needs manganese in order to form. Manganese is needed by an enzyme that is needed for collagen formation in skin during wound healing.
MANGANESE DEFICIENCY
Manganese deficiency does not normally result in clear symptoms. Manganese deficiency may impair growth.
FOOD SOURCES OF MANGANESE
Whole grains, green leafy vegetables, and peanut butter are rich sources of manganese, as seen in Graph 13-3. White flour products are depleted of most of their manganese. Diets high in vegetables and whole grains are normally high in manganese. There was not sufficient information for the Food and Nutrition Board of the Institute of Medicine to determine RDAs for manganese. Instead they published adequate intakes (AI), which are based on average consumption. Please refer to Table 13-4.
Table 13-4 Adequate intakes for manganese for all ages.
Graph 13-3 Manganese content of some common foods.
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