Dietary Reference Intakes For Vitamin E

A report of the panel on dietary antioxidants and related compounds subcommitties on upper reference levels of nutrients and of interpretation and use of dietary reference intakes and the standing committee on the scientific evaluation of dietary reference intakes.

Dietary reference intakes for vitamin e. Estimation of vitamin e intake is difficult. Establishes principles and guidelines of adequate dietary intake. Vitamin e intake from food.

Dietary reference intakes for vitamin c vitamin e selenium and carotenoids. Normal diets do not readily become vitamin e deficient 2 vitamin e supplements may be protective in numerous pathologies involving oxidative stress such as cancer dia the the new us dietary reference intakes for vitamins c and e. Dri is the general term for a set of reference values used to plan and assess nutrient.

The panel considers that average requirements ars and population reference intakes pris for vitamin e as α tocopherol cannot be derived for adults infants and children and therefore defines adequate intakes ais based on observed intakes in healthy populations with no apparent α tocopherol deficiency in the eu. Other forms of vitamin e do not contribute toward meeting the requirement. The requirement for vitamin e is based on the 2r stereoisomeric forms of alpha tocopherol only this includes rrr alpha tocopherol which occurs naturally in foods and the 2r stereoisomeric forms rrr rsr rrs and rss forms that occur in supplements and fortified foods all racemic alpha tocopherol.

There is a propensity to underreport energy intake in national surveys and fat intake is more underreported than energy intake in the nhanes iii survey brief el et al 1997. 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. And renders authoritative judgments on the relationships among food intake nutrition and health.

The dietary reference intake dri is a system of nutrition recommendations from the institute of medicine iom of the national academies united states. Since vitamin e is associated with fat in the food matrix underreporting of the total intake. Intake recommendations for vitamin e 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.

Table 1 dietary reference intakes for vitamin e a tocopherol a by life stage group dri values mga day earb rdac aid ule f life stage groupg ndh 0 through 6 mo 4 7 through 12 mo 5 nd 1 through 3 y 5 6 200 4 through 8 y 6 7 300 9 through 13 y 9 11 600 14 through 18 y 12 15 800 19 through 30 y 12 15 1 000 31 through 50 y 12 15 1 000 51.