Dietary Reference Intakes Applications in Dietary Planning (2003) / Chapter Skim
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Appendix A: Origin and Framework of the Development of Dietary Reference Intakes
Appendix A: Origin and Framework of the Development of Dietary Reference Intakes
Pages 163-170
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From page 163... ...
ORIGIN This initiative began in June 1993, when FNB organized a symposium and public hearing entitled, "Should the Recommended Dietary Allowances Be Revised? " Shortly thereafter, to continue its collaboration with the larger nutrition community on the future of the Recommencleci Dietary Allowances (RDAs)
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From page 164... ...
. Consensus following a symposium for Canadian scientists, cosponsored by the Canadian National Institute of Nutrition and Health Canada in April 1995, was that the Canaclian government should pursue the extent to which involvement with the developing FNB process would benefit both Canada and the United States in leacling toward harmonization.
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From page 165... ...
provide guidance for the appropriate application of DRIs for specific purposes and identify inappropriate applications, (3) provide guidance for adjustments to be macle for potential errors in clietary intake ciata and the assumptions regarding intake and requirement distributions, (4)
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From page 166... ...
This report reflects the work of the DRI Committee, the Uses Subcommittee, and the Subcommittee on Upper Reference Levels of Nutrients. ISSUES OF RELEVANCE FROM PAST DIETARY REFERENCE INTAKE REPORTS Methodo;togy to Develop Estimated Average Requirements and Recommended Dietary A;~;towances When Requirements for Nutrients Are Not Norma;l;ly Distributed For most of the nutrients for which Estimated Average Requirements (EARs)
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From page 167... ...
Information about the clistribution of values for the requirement components is mocleleci on the basis of known physiology. Monte Carlo approaches may be used in the simulation of the distribution of components, or where large ciata sets exist for similar populations (ciata sets such as growth rates in infants)
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From page 168... ...
Reference Heights and Weights Used in Extrapolating Dietary Reference Intakes for Vitamins and E;tements The most up-to-date ciata providing heights and weights of inclivicluals in the United States and Canada when the DRI process was initiated in 1995 were anthropometric ciata from the 1988-1994 Third National Health and Nutrition Examination Survey (NHANES III) in the United States, and older ciata from Canada.
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From page 169... ...
were thus based on the most recent ciata set available from either country, with recognition that earlier surveys in Canada inclicateci shorter stature and lower weights cluring adolescence than clici surveys in the United States.
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From page 170... ...
TABLE A-3 New Reference Heights and Weights for Children and Adults in the United States Previous Median New Body Mass New Median New Indexa Median Reference Reference (BMI) BMIb Heightb Weights Sex Age (kg/m2)
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