whoDietary Reference Intakes for Vitamin C in WHO(World Health Organization)

Men

Age R
0 - 1 years 20 mg
1 - 9 years 20 mg
10 - 19 years 20 ~ 30 mg
20 - 59 years 30 mg
60 years and abobe 30 mg

Women

Age R
0 - 1 years 20 mg
1 - 9 years 20 mg
10 - 19 years 20 ~ 30 mg
20 - 59 years 30 mg
60 years and abobe 30 mg

Pregnant Women in 1st Trimester

Age R
10 - 19 years 20 ~ 30 mg
20 - 59 years 30 mg
60 years and abobe 30 mg

Pregnant Women in 2nd Trimester

Age R
10 - 19 years 40 ~ 50 mg
20 - 59 years 50 mg
60 years and abobe 50 mg

Pregnant Women in 3rd Trimester

Age R
10 - 19 years 40 ~ 50 mg
20 - 59 years 50 mg
60 years and abobe 50 mg

Lactating Women, first 6 months

Age R
10 - 19 years 40 ~ 50 mg
20 - 59 years 50 mg
60 years and abobe 50 mg

Lactating Women, after 6 months

Age R
10 - 19 years 20 ~ 30 mg
20 - 59 years 30 mg
60 years and abobe 30 mg


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.