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Adequate Intake (AI)

A recommended average daily nutrient intake level, based on observed (or experimentally determined) approximations or estimates of nutrient intake that are assumed to be adequate for a group (or groups) of healthy people; Measure is used when RDA can not be determined.

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Estimated Average Requirement (EAR)

The average daily nutrient intake level that is estimated to meet the requirement of half the healthy individuals who are in a particular life stage and gender group.

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Bracing

The co-contraction of global muscles.