What is the standard used to estimate the daily nutrient needs of half of all healthy individuals?

EAR (Estimated Average Requirement) is the standard used to estimate daily nutrient needs of half of all healthy individuals.

Explanation:

Estimated Average Requirement (EAR) is basically the daily intake value of a nutrient that is estimated to meet the nutrient requirement of half the individuals which are healthy in a gender group and a life stage.

It is the level of intake for a nutrient at which the needs of 50% of the population will be met. Because the needs of the remaining population will not be met by this amount. It is basically derived from a group estimate.

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