Table 1
Estimated energy requirements (EER) based on Institute of Medicine (IOM) equations, by body mass index, age and sex

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Body mass index (BMI), age and sex Institute of Medicine equation for estimated energy requirement
BMI between 18.5 kg/m2 and 25 kg/m2
Ages 9 to 18
Male EER = 113.5 - 61.9*age (years) + PAL * (26.7 * weight (kg) + 903 * height (m)), where PAL = 1 if sedentary, 1.13 if low active, 1.26 if active, and 1.42 if very active.
Female EER = 160.3 - 30.8*age (years) + PAL * (10 * weight (kg) + 934 * height (m)), where PAL = 1 if sedentary, 1.16 if low active, 1.31 if active, and 1.56 if very active.
Ages 19 or older
Male EER = 661.8 - 9.53*age (years) + PAL*(15.91* weight (kg) + 539.6* height (m)), where PAL = 1 if sedentary, 1.11 if low active, 1.25 if active, and 1.48 if very active.
Female EER = 354.1 - 6.91*age (years) + PAL*(9.36* weight (kg) + 726* height (m)), where PAL = 1 if sedentary, 1.12 if low active, 1.27 if active, and 1.45 if very active.
BMI more than 25 kg/m2
Ages 9 to 18
Male EER = -114.1-50.9*age (years) + PAL * (19.5*weight (kg) + 1161.4*height (m)), where PAL = 1 if sedentary, 1.12 if low active, 1.24 if active, and 1.45 if very active.
Female EER = 389.2 - 41.2*age (years) + PAL * (15 * weight (kg) + 701.6 * height (m)), where PAL = 1 if sedentary, 1.18 if low active, 1.35 if active, and 1.60 if very active.
Ages 19 or older
Male EER = 1085.6 - 10.08*age (years) + PAL*(13.7* weight (kg) + 416* height (m)), where PAL = 1 if sedentary, 1.12 if low active, 1.29 if active and 1.59 if very active.
Female EER = 447.6 - 7.95*age (years) + PAL*(11.4* weight (kg) + 619* height (m)), where PAL = 1 if sedentary, 1.16 if low active, 1.27 if active and 1.44 if very active.
Note: PAL is physical activity level.
Source: Institute of Medicine. Dietary Reference Intakes for Energy, Carbohydrate, Fiber, Fat, Fatty Acids, Cholesterol, Protein and Amino Acids. Washington, DC: National Academy Press, 2005.14