Explain the Recommended Dietary Allowances - Nutrition?
RDA: The RDA is the average daily dietary intake that is sufficient to meet the nutrient requirement of nearly all healthy individuals in a particular life stage and gender group. Under assumption of normality of the distribution of requirements, the RDA can be calculated from the EAR and the standard deviation of requirements as follows:
Recommended Dietary Intake = Estimated Average Intake + 2 SD requirement
The RDA is intended to be used as a goal for usual intakes from the diet. Since RDA is established from EAR, if data are inadequate to estimate the EAR, no RDA can be established, In such cases, the adequate intake (N), as described next, is used as the goal.