Dietary Reference Intakes for Water, Potassium, Sodium, Chloride, and Sulfate (2005) / Chapter Skim
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Appendix B: Origin and Framework of the Development of Dietary Reference Intakes
Appendix B: Origin and Framework of the Development of Dietary Reference Intakes
Pages 477-484
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From page 477... ...
it held several symposia at nutrition-focused professional meetings to discuss FNB's tentative plans and to receive responses to the initial concept paper. Many aspects of the conceptual framework of the DRIs came from the United Kingdom's report, Dietary Reference Values for Food Energy and Nutrients for the United Kingdom (COMA, 1991)
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From page 478... ...
. Consensus following a symposium for Canadian scientists, cosponsored by the Canadian National Institute of Nutrition and Health Canada in April 1995, was that the Canadian government should pursue the extent to which involvement with the developing FNB process would benefit both Canada and the United States in leading toward harmonization.
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From page 479... ...
review selected components of food that may influence the bioavailability of these compounds, as well as their interaction with each other; (3) develop estimates of dietary intake of these compounds that are compatible with good nutrition throughout the lifespan and that may decrease risk of chronic disease where data indicate they play a role; (4)
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From page 480... ...
ISSUES OF RELEVANCE FROM PAST DIETARY REFERENCE INTAKE REPORTS Methodology to Develop Estimated Average Requirements and Recommended Dietary Allowances When Requirements for Nutrients Are Not Normally Distributed For most of the nutrients for which Estimated Average Requirements (EARs) have been established, the required assumption of distribution of requirements among the groups for which the EAR was developed is that of symmetry about the mean.
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From page 481... ...
In the case of iron, however, expected correlation is built into the modeling of requirement where components are linked to a common variable, such as growth rate, so that not all sources of correlation are neglected. Reference Height and Weights Used in Extrapolating Dietary Reference Intakes for Vitamins and Elements The most up-to-date data providing heights and weights of individuals in the United States and Canada when the DRI process was initiated in 1995 were limited to anthropometric data from the 1988–1994 Third National Health and Nutrition Examination Survey (NHANES III)
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From page 482... ...
and new growth charts for infants and children have allowed the development of new reference heights and weights in this report that should more closely approximate actual weights based on low risk of chronic disease and adequate growth for children. These new values are used in this report when reference values are needed, and are discussed in Chapter 1 (see Table 1-1)
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From page 483... ...
were thus based on the most recent data set available from either country, with recognition that earlier surveys in Canada indicated shorter stature and lower weights during adolescence than did surveys in the United States. REFERENCES COMA (Committee on Medical Aspects of Food Policy)
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From page 484... ...
2000. CDC growth charts: United States.
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