Important Notice: Our web hosting provider recently started charging us for additional visits, which was unexpected. In response, we're seeking donations. Depending on the situation, we may explore different monetization options for our Community and Expert Contributors. It's crucial to provide more returns for their expertise and offer more Expert Validated Answers or AI Validated Answers. Learn more about our hosting issue here.

What is a Recommended Dietary Allowance (RDA)?

April 26, 2017allowance dietary dietary reference intakes dri RDA recommended

0

Posted

What is a Recommended Dietary Allowance (RDA)?

1 Answer

0

Posted

A Recommended Dietary Allowance (RDA) is the average daily dietary intake level that is sufficient to meet the nutrient requirement of nearly all (97 to 98 percent) healthy individuals in a particular life-stage and gender group. • If the distribution of requirements in the group is assumed to be normal, then the RDA can be calculated from the EAR and the standard deviation of requirements (SDREQ) as follows: RDA = EAR + 2 SDREQ • If the distribution of requirements is known to be skewed, other methods are used to identify the 97th to 98th percentile of the requirement distribution and to set the RDA at this level. The RDA is used as a goal for usual intake of individuals. Because the RDA is calculated based on the EAR, an RDA can only be set for a particular nutrient if there is sufficient scientific evidence to establish an EAR for that nutrient.