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Vitamins: Part 2

submitted: Dec 11th 2007 | by: MelPossehl.
Total views: 10 | Word Count: 268 | | |

In 1993 there was proposed a new system of monographs for vitamins, replacing the RDA (Recommended Daily Allowance). This system is called the Dietary Reference Intakes.

The DRI includes four subcategories, as follows:

Recommended Dietary Allowance/RDA - Daily average intake of a vitamin to meet the needs of most of a given life stage/gender group in good health (97-98%). This is a goal for intake, not assessing a diet.

Adequate Intake Level (AI) - This is based on observed and or experimentally determined estimates of nutrient intake by relatively healthy people that are assumed to be adequate. This estimate is used when there is insufficient evidence to calculate the EAR (see below).

UI/Tolerable Upper Intake Level - Thought to be the safest maximum level at which a vitamin will not pose a threat. Potential risks on ones body increase as intake goes above this level.

Estimated Adequate Intake (EAR) - This is the average daily nutrient intake level estimates to meet the requirement of 50% of the individuals in a particular life stage/ gender group. It is population weighed and is considered to be the most accurate reflection of food-nutrient needs of a group, excluding young children and pregnant/lactating women, whose needs differ greatly.

In closing it is important to note that these are reference values for planning & assessing diets for a healthy population. The RDA & AI levels should keep a healthy person from developing symptoms of a deficiency, but they are not intended to replenish undernourished people nor may they be adequate for people in states of dis-ease.

I hope you enjoyed this article. To learn more please follow the links provided.

About the Author

To find out more about vitamins and the new monograms, please click Vitamin Requirements to view. Melissa Possehl can enlighten you on not only Vitamin Requirements, but many other things having to do with nutrition & healthy living! You can get a unique content version of this article.

Article Source: Unique Financial Articles

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