Vitamin E also supports immune function ... The tolerable upper intake level set by the Office of Dietary Supplements is 1,000 mg (1,500 IU) per day for adults. Consistently exceeding this ...

Patients were randomly assigned in a 2 x 2 factorial design to simvastatin plus niacin or to an antioxidant combination (800 IU vitamin E, 1000 mg vitamin C, 25 mg beta-carotene, and 100 mg selenium).