Define requirements of Vitamin A for infants?

As for vitamin A deficiency, requirement of vitamin A is the most easy to meet as it is abundantly present in green and yellow vegetables and fruits, whole milk. Children largely like vitamin A-rich foods but ignorance of mother and caregivers or lack of adequate supervision can cause its deficiency. One tea spoon of red palm oil or small amounts of less than 10 gm of fresh leaves can meet the day's requirement of vitamin A of preschool children. The Government has a prophylaxis programme, as  you may already be aware, which provides one teaspoonful of oil-miscible vitamin A  syrup containing 200, 000 IU of vitamin A once every six months to children between  the age of 9-36 months.