When is an Individual an Individual Versus a Member of a Group? An Issue in the Application of the Dietary Reference Intakes
2006
The Institute of Medicine (IOM) reports on Dietary Reference Intakes (DRIs) present a new paradigm for the description of nutrient requirements. Tradition and the DRI reports themselves have created an erroneous impression that the Recommended Dietary Allowance (RDA) is intended for use with individuals and the Estimated Average Requirement (EAR) is to be used with populations. Two recent IOM committee reports (one on nutrition labeling and one on Women, Infants and Children [WIC] food packages) challenge that interpretation, revealing the critical issues surrounding individuals versus groups or populations. The present paper examines the issues and concludes that the median requirement and Tolerable Upper Limit (UL) are the critical reference values for both individuals and populations. The RDA is both unneeded and lacking a sound scientific basis.
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