Human Nutrition 3(3+0)

Lesson 3 : Recommended Dietary Allowances for Nutrients

Thiamine

Thiamine-pyrophosphate functions as a coenzyme for cocarboxylase which is intimately involved in carbohydrate metabolism. In habitual Indian diets, cereals form the major source of thiamine. In the rice eating population, this is the single most important dietary article which provides thiamine. Deficiency of thiamine if prolonged leads to beriberi. Thiamine requirement is closely linked with energy intake (0.5 mg/1000 cal) and where there is energy deficiency, a deficiency of thiamine may not show up despite dietary deficiency of the vitamin. Thiamine allowances (mg/day) for various age groups are given in Table.

Table 7: RDA for Thiamine

Group/Life stages	Thiamin( mg/day)
Adult man Sedentary work Moderate work Heavy work Adult woman Sedentary work Moderate work Heavy work	1.2 1.4 1.7 1.0 1.1 1.4
Pregnant woman Lactating woman	+0.2 +0.3
Infants: 0 -6 months 6- 12 months	0.2 0.3
Children: 1-3 years 4- 6 years 7-9 years	0.5 0.7 0.8
Adolescents: 10-12 years Boys Girls 13-15 years Boys Girls 16-18 years Boys Girls	1.1 1.0 1.4 1.2 1.5 1.0

Ref: Nutrition Expert group, ICMR(2010)