Dietary Reference Intake For Vitamin A

This series provides recommended intakes such as recommended dietary allowances rdas for use in planning nutritionally adequate diets for individuals based on age and gender.
Dietary reference intake for vitamin a. The term vitamin a is used in the context of dietary requirements to include provitamin a carotenoids that are dietary precursors of retinol. It comes in a number of forms as retinol retinal retinoic acid or retinyl ester. There are a variety of foods rich in vitamin a and provitamin a carotenoids that are available to north americans.
This volume is the newest release in the authoritative series issued by the national academy of sciences on dietary reference intakes dris. Background vitamin a is a fat soluble vitamin which helps maintain normal reproduction vision and immune function.