whoDietary Reference Intakes for Energy(kcal) in WHO(World Health Organization)

Men

Age R
0 - 1 years 700 ~ 950 kcal
1 - 9 years 1150 ~ 2100 kcal
10 - 19 years 2200 ~ 2800 kcal
20 - 59 years 2650 ~ 3250 kcal
60 years and abobe 2100 ~ 2800 kcal

Women

Age R
0 - 1 years 700 ~ 950 kcal
1 - 9 years 1150 ~ 2100 kcal
10 - 19 years 1950 ~ 2150 kcal
20 - 59 years 2150 ~ 2700 kcal
60 years and abobe 1850 ~ 2500 kcal

Pregnant Women in 1st Trimester

Age R
10 - 19 years 2190 ~ 2390 kcal
20 - 59 years 2390 ~ 2940 kcal
60 years and abobe 2090 ~ 2740 kcal

Pregnant Women in 2nd Trimester

Age R
10 - 19 years 2190 ~ 2390 kcal
20 - 59 years 2390 ~ 2940 kcal
60 years and abobe 2090 ~ 2740 kcal

Pregnant Women in 3rd Trimester

Age R
10 - 19 years 2190 ~ 2390 kcal
20 - 59 years 2390 ~ 2940 kcal
60 years and abobe 2090 ~ 2740 kcal

Lactating Women, first 6 months

Age R
10 - 19 years 2450 ~ 2650 kcal
20 - 59 years 2650 ~ 3200 kcal
60 years and abobe 2350 ~ 3000 kcal

Lactating Women, after 6 months

Age R
10 - 19 years 2450 ~ 2650 kcal
20 - 59 years 2650 ~ 3200 kcal
60 years and abobe 2350 ~ 3000 kcal


Source: Food and Agriculture Organization (1988) Requirements of Vitamin A, Iron, Folate and Vitamin B12, Report of a Joint FAO/WHO Expert Consultation, FAO Food and Nutrition Series 23, FAO, Rome. World Health Organization (1985) Enegy and Protein Requirements, Report of a Joint FAO/WHO/UNU Expert Consulation, WHO Technical Report Series 724, WHO, Geneva. Beaton GH, Patwardhan VN (1976) Physiological and practical considerations of nutrient function and requirements. In : Nutrtion in Preventive Medicine : the Major Deficiency Syndromes, Epidemiology, and Approaches to Control (Beaton GH, Bengoa JM, eds), p.445-81, WHO, Geneva.