Dietary Reference Intakes Vitamin A

The dris represent the most current scientific knowledge on nutrient needs of healthy populations.

Dietary reference intakes vitamin a. Following a request from the european commission the panel on dietetic products nutrition and allergies derived dietary reference values for vitamin a. These documents are issued by the food and nutrition board of the institute of medicine national academy of sciences the food and nutrition board addresses issues of safety quality and adequacy of the food supply. It was introduced in 1997 in order to broaden the existing guidelines known as recommended dietary allowances rdas see below the dri values differ from those used in nutrition labeling on food and dietary supplement products in the u s.

There are a variety of foods rich in vitamin a and provitamin a carotenoids that are available to north americans. And renders authoritative judgments on the relationships among food intake nutrition and health. This volume is the newest release in the authoritative series issued by the national academy of sciences on dietary reference intakes dris.

Dri is the general term for a set of reference values used for planning and assessing. 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. The fundamental framework is described under introduction to dietary reference intakes chapter 1 of the report on dietary reference intakes for vitamin a vitamin k arsenic boron chromium copper iodine iron manganese molybdenum nickel silicon vanadium and zinc to which we will refer extensively in this article.

Establishes principles and guidelines of adequate dietary intake. Please note that individual requirements may be higher or lower than the dris. Thus current dietary patterns appear to provide sufficient vitamin a to prevent deficiency symptoms such as night blindness.

Vitamin a is important for normal vision gene expression reproduction embryonic development growth and immune function. The dietary reference intakes dris are developed and published by the institute of medicine iom. Intake recommendations for vitamin a and other nutrients are provided in the dietary reference intakes dris developed by the food and nutrition board fnb at the institute of medicine of the national academies formerly national academy of sciences.

The panel considered that a concentration of 20 µg retinol g liver can be used as a target for establishing the average requirement ar for vitamin a.