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Moms Team: u.s. Dietary Reference Intakes (Dr Is) for Minerals
Here is a chart with useful information on the minerals you need to be healthy. Includes "functions" and "sources" of calcium, iron, magnesium, sodium, potassium, zinc, copper, selenium, chromium, manganese, iodine, fluoride, and phosporus.
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Moms Team: Vitamins and Minerals in Some Commonly Eaten Foods
Here is a chart listing the minerals and vitamins that are present in foods from the different food groups.