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Illustrated Health Encyclopedia
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Ency. home > Nutrition > V > Vitamins

Vitamins   

Overview | Recommendations | Side Effects | Food Sources

Recommendations

Recommended daily allowances (RDAs), are defined as the levels of intake of essential nutrients that, on the basis of scientific knowledge, the Food and Nutrition Board judges to be adequate to meet the known nutritional needs of practically all healthy people.

The best way to get the daily requirement of essential vitamins is to eat a balanced diet that contains a variety of foods from the food guide pyramid.

Specific recommendations for each vitamin depend on age, gender, and other factors (such as pregnancy). The U.S. Department of Agriculture has a PDF file that lists these recommendations.

Ency. home > Nutrition > V > Vitamins

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