How many vitamin do you need a day?

The U.S. http://www.answers.com/topic/recommended-dietary-allowance (RDA) of the http://www.answers.com/topic/alpha-tocopherol formulation of vitamin E is as follows: * men: 10 mg or 15 IU * women: 8 mg or 12 IU * pregnant women: 10 mg or 15 IU * lactating women: 12 mg or 18 IU In April 2000, the National Academy of Sciences recommended changing the RDA for vitamin E to 22 international units (IUs), with an upper limit (UL), or maximum daily dose, of 1500 IUs. Daily values for the vitamin as recommended by the U.S. Food and Drug Administration, the values listed on food and beverage labeling, remain at 30 IUs for both men and women age four and older.