Daily Intake. The recommended daily allowance of vitamin E used to be 8 mg for women and 10 mg for men. However, these amounts were increased by the Food and Nutrition Board of the Institute of Medicine in 2000. Currently, males and females over 14 years should consume 15 mg, or 22.5 IU, of vitamin E every day. If you take vitamin E supplements instead of consuming the vitamin in your diet, RDA increases to 33 IU. Breastfeeding mothers should get 19 mg, or 28.5 IU, daily, while infants and children need less, ranging from 4 to 7 mg respectively, or 6 to 9 IU.