Dietary Reference Intakes (DRIs): Acceptable Macronutrient Distribution Ranges

Food and Nutrition Board, Institute of Medicine, National Academies

MacronutrientRange (percent of energy)
Children, 1–3 yChildren, 4–18 yAdults
n-6 polyunsaturated fatty acidsa (linoleic acid)5–105–105–10
n-3 polyunsaturated fatty acidsa (α-linolenic acid)0.6–1.20.6–1.20.6–1.2

Approximately 10 percent of the total can come from longer-chain n-3 or n-6 fatty acids.

SOURCE: Dietary Reference Intakes for Energy, Carbohydrate, Fiber, Fat, Fatty Acids, Cholesterol, Protein, and Amino Acids (2002/2005). The report may be accessed via www​

From: Summary Tables

Cover of Dietary Reference Intakes for Calcium and Vitamin D
Dietary Reference Intakes for Calcium and Vitamin D.
Institute of Medicine (US) Committee to Review Dietary Reference Intakes for Vitamin D and Calcium; Ross AC, Taylor CL, Yaktine AL, et al., editors.
Washington (DC): National Academies Press (US); 2011.
Copyright © 2011, National Academy of Sciences.

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