Harmonization of Approaches to Nutrient Reference Values Applications to Young Children and Women of Reproductive Age (2018) / Chapter Skim
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Appendix E: Scaling Methods to Extrapolate from Reference Values of One Age Group to Another
Appendix E: Scaling Methods to Extrapolate from Reference Values of One Age Group to Another
Pages 143-146
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2002/2005. Dietary Reference Intakes for energy, carbohydrate, fiber, fat, fatty acids, cholesterol, protein, and amino acids.
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From page 144... ...
TABLE E-1 Extrapolation by Scaling 144 Allometric, E Nutrient Extrapolation xponent; 0.75 Isometric Growth Factor Other Choline AI adult →AI child yes yes AI 0–6m→AI 7–12m yes no Biotin AI 0–6m→AI 7–12m, 1–18y, yes no adult Pantothenic acid adult→children yes yes AI 0–6m→AI 7–12m yes no Fluoride 0.05 mg/kg/d no yes no Vitamin D adult→1–9y yes no Magnesium EAR 10–15y→EAR 1–3 and 4–8y yes no 5mg/kg/d Potassium AI adult→AI 1–18y AI child = AI adult × F F = energy intakechild/ energy intake adult UL child = UL adult × F F= energy intake adult/ UL adult →UL child energy intake child Sodium Same as potassium Vitamin A, chromium, EAR/AI adult→EAR/AI child yes yes copper, molybdenum, (no extrapolation for iodine iodine for 1–3 y and 4–8 y old) yes AI 0–6m →AI 7–12m no Vitamin K AI 7–12m→AI 0–6m yes no Iron No extrapolation for 7–12 m, 1–8y, 9–18 y Manganese EAR adult→EARchild yes yes AI 0–6m →AI 7–12m no no
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From page 145... ...
for infants or children can be extrapolated down by scaling the requirements for adults to the 0.75 power of body mass.
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