<prompt> RDA of thiamine per 1000 kcal energy per day is0.5 mg0.6 mg0.7 mg0.8 mg  <response>: RDA of thiamine per 1000kCal energy per day is 0.5mg.Recommended Daily Allowance of Thiamine It depends on calorie intake 0.5 mg1000 calories. Requirement is 1-1.5 mgday. Thiamine is useful in the treatment of beriberi, alcoholic polyneuritis, neuritis of pregnancy and neuritis of old age.Reference: Textbook of Biochemistry by D M Vasudevan, sixth edition, pg no. 392 