Features of RDA:
i. Given in Kilocalories, gram, milligram and microgram
ii. Calorie requirement of adult man and woman are given on the basis of physical activity.
iii. Recommendations for vitamin B1, B2 and Niacin are based on calorie requirement of a person.
iv. Requirement of protein is given as per Kilogram body weight.
v. Requirement of protein and calorie during pregnancy and lactation is given as additional allowances.
vi. Recommended allowances of Vitamin A is given in the form of Retinol or B (beta) carotene.