Appendix B: Dietary Reference Intakes: Estimated Energy Requirements

^aFor each year below 30, add 7 kcal/day for women and 10 kcal/day for men. For each year above 30, subtract 7 kcal/day for women and 10 kcal/day for men.

^bPAL = physical activity level.

^cBMI = body mass index.

^dDerived from the following regression equations based on doubly labeled water data:

• Adult man: EER = 662 – 9.53 × age (yr) + PA × (15.91 × wt [kg] + 539.6 × ht [ml])

• Adult woman: EER = 354 – 6.91 × age (yr) + PA × (9.36 × wt [kg] + 726 × ht [ml])

where PA refers to coefficient for PAL.

PAL = total energy expenditure ÷ basal energy expenditure

• PA = 1.0 if PAL ≥ 1.0 < 1.4 (sedentary)

• PA = 1.12 if PAL ≥ 1.4 < 1.6 (low active)

• PA = 1.27 if PAL ≥ 1.6 < 1.9 (active)

• PA = 1.45 if PAL ≥ 1.9 < 2.5 (very active)

SOURCE: Dietary Reference Intakes for Energy, Carbohydrate, Fiber, Fat, Fatty Acids, Cholesterol, Protein, and Amino Acids (2002).

Dietary Reference Intakes for Energy, Carbohydrates, Fiber, Fat, Fatty Acids, Cholesterol, Protein, and Amino Acids (Macronutrients). 2005, the National Academy of Sciences, courtesy of the National Academies Press, Washington, DC.