Define the recommended dietary allowance for thiamin (rda), Biology

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Define the Recommended Dietary Allowance for Thiamin (RDA)?

Thiamin, as it must be clear by now, is needed mainly for the metabolism of carbohydrate, branch-chained amino acids, fat and alcohol. Because the requirements increase as energy expenditure increases, thiamin requirements are expressed as ratios to food energy. Look at Table, which presents the ICMR and the FAO/ WHO 2004 recommendations for thiamin requirement for different age and physiological groups.

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Because thiamin facilitates energy utilization, its requirements have traditionally been expressed on the basis of energy intake, which can vary depending on activity levels.  Therefore, the RDA as recommended by ICMR for adults is 0.5 mg11000 Kcal, however, an intake of 110 less than 1 mg/day is advised. The individual intake for thiamin, hence for an adult man is 1.2 mg/day and adult woman is 0.9 mg/day as indicated in Table. You may have noticed that the requirements increase in case of pregnancy and lactation owing to increased energy demands.


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