Estimated Average Requirement
Estimated Average Requirement (EAR) is a Nutrient intake recommendation that is estimated to meet the requirement of half the healthy individuals in a particular life stage and gender group.
Pronunciation
/es'ti:meitid 'ævərɪdʒ rɪ'kwaɪərmənt/
Etymology
The term "Estimated Average Requirement" is derived from the English language. "Estimated" comes from the Latin word "aestimatus", "Average" is from the French word "avarie", and "Requirement" is from the Old French word "requerre".
Definition
The Estimated Average Requirement (EAR) is a daily nutrient intake value that is estimated to meet the requirement in 50% of healthy individuals in a particular life stage and gender group. It is used to assess the adequacy of nutrient intakes in population groups but not individuals.
Related Terms
- Recommended Dietary Allowance (RDA): The average daily dietary nutrient intake level sufficient to meet the nutrient requirement of nearly all (97 to 98 percent) healthy individuals in a particular life stage and gender group.
- Adequate Intake (AI): A recommended intake value based on observed or experimentally determined approximations or estimates of nutrient intake by a group (or groups) of healthy people that are assumed to be adequate.
- Tolerable Upper Intake Level (UL): The highest level of daily nutrient intake that is likely to pose no risk of adverse health effects to almost all individuals in the general population.
See Also
External links
- Medical encyclopedia article on Estimated Average Requirement
- Wikipedia's article - Estimated Average Requirement
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