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Live Well Vitamins & Lifestyle Guide

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Vitamin E

Vitamin E is key for strong immunity and healthy skin and eyes. In recent years, vitamin E supplements have become popular as antioxidants. These are substances that protect cells from damage.

Vitamin E Uses

Many people use vitamin E supplements in the hopes that the vitamin’s antioxidant properties will prevent or treat disease. Early lab studies of vitamin E supplements were promising. But studies of vitamin E in people have been disappointing. Studies of vitamin E for cancer, heart disease, diabetes, Alzheimer’s disease, cataracts, and many other conditions have been inconclusive.

So far, the only established benefits of vitamin E supplements are in people who have an actual deficiency. However, vitamin E deficiencies are rare. They’re more likely in people who have diseases, such as digestive problems and cystic fibrosis. People on very low-fat diets may also have low levels of vitamin E.

Vitamin E Dose & Instructions for Use

The recommended dietary allowance (RDA) includes the vitamin E you get from both the food you eat and any supplements you take.

Category

Vitamin E (alpha-tocopherol): Recommended Dietary Allowance (RDA)
in milligrams (mg) and International Units (UI)

CHILDREN

1-3 years

6 mg/day (9 IU)

4-8 years

7 mg/day (10.5 IU)

9-13 years

11 mg/day (16.5 IU)

FEMALES

14 years and up

15 mg/day (22.5 IU)

Pregnant

15 mg/day (22.5 IU)

Breastfeeding

19 mg/day (28.5 IU)

MALES

14 years and up

15 mg/day (22.5 IU)

 

The tolerable upper intake levels of a supplement are the highest amount that most people can take safely. Higher doses might be used to treat vitamin E deficiencies. But you should never take more unless a doctor says so.

Category
(Children & Adults)

Tolerable Upper Intake Levels (UL) of
Vitamin E (alpha-tocopherol)
 in milligrams (mg) and International Units (UI)

1-3 years

200 mg/day (300 IU)

4-8 years

300 mg/day (450 IU)

9-13 years

600 mg/day (900 IU)

14-18 years

800 mg/day (1,200 IU)

19 years and up

1,000 mg/day (1,500 IU)


Because vitamin E is fat-soluble, supplements are best absorbed with food.

Vitamin E Food Sources

Most people get enough vitamin E from food. Good sources of vitamin E include:

  • Vegetable oils
  • Green leafy vegetables, like spinach
  • Fortified cereals and other foods
  • Eggs
  • Nuts

Vitamin E Supplement Information

Vitamin E is available in pills, capsules, and liquids. It’s standard in multivitamins. Vitamin E is also sold as a topical ointment. Like any supplement, keep vitamin E supplements in a cool, dry place, away from humidity and direct sunlight.

There are eight different types of vitamin E. Alpha-tocopherol is the most common. It’s also the most active form.

Vitamin E Warnings

  • Side effects. Topical vitamin E can irritate the skin. Overdoses of vitamin E supplements can cause nausea, headache, bleeding, fatigue, and other symptoms.   
  • Interactions. People who take blood thinners should not take vitamin E supplements without talking to a doctor first. If you take any medication, it’s best to check with your doctor to make sure vitamin E supplements won’t interfere.
  • Risks. Vitamin E supplements have unclear benefits and risks. So don’t use them in high doses or for the long term unless your doctor suggests it.

WebMD Medical Reference

Reviewed by Michael W. Smith, MD on April 16, 2008
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