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Basics You Need to Know About Vitamin E

Medically Reviewed by Madeline Hubbard, RN, BSN

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Vitamin E is a compound that plays many important roles in your body and provides multiple health benefits. In order to maintain healthy levels of vitamin E, you need to ingest it through food or consume it as an oral supplement. Read on to find out which foods are recommended sources of this essential nutrient, along with other basics to know about vitamin E.

What Does Vitamin E Do?

Vitamin E is classified as an antioxidant. This means that vitamin E helps to destroy harmful compounds called free radicals that can build up in your body. Free radicals cause damage to cells through oxidative stress, and they've been linked to aging and health problems such as cancer and heart disease. Getting enough vitamin E on a daily basis may help to combat these conditions by protecting the outer membranes of your cells from free radical damage.

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Vitamin E also plays an important role in your immune system and your body's ability to fight infection. At certain doses, vitamin E has been shown to stimulate the function of T cells — a type of cell that responds to pathogens that cause disease. Recent studies have shown that increasing your vitamin E intake may correlate with a stronger immune response and greater resistance to infection.

Vitamin E is present in the following whole foods:

Wheat germ
Almonds
Plant oils (vegetable, sunflower, grapeseed, etc.)
Sunflower seeds
Peanut butter
Spinach
Broccoli
Kiwi
Mango

Daily Dosage Recommendations

As people age, their daily dosage recommendation for vitamin E increases. For these standard recommended daily doses, a healthy balanced diet is usually sufficient for getting the required amount of vitamin E:

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Birth to 6 months: 4 milligrams (mg)/day
1 to 12 months: 5 mg/day
1 to 3 years: 6mg/day
4 to 8 years: 7mg/day
9 to 13 years: 11mg/day
14+ years, including adults and seniors: 15mg/day

A person's age, gender and health conditions can help determine their recommended daily dose of vitamin E. Always consult a healthcare professional before altering your intake of vitamin E from the recommended daily dosage.

Taking Vitamin E Supplements

If it becomes necessary, such as if you become deficient in vitamin E, your doctor may advise you to start taking vitamin E supplements. Vitamin E supplements may come with some minor side effects if you take more than the recommended daily amount or if you combine these supplements with certain medications.

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For example, vitamin E may increase the risk of bleeding if you take it with anticoagulants (also called blood thinners) like warfarin. Other medications, like chemotherapy drugs and cholesterol-lowering drugs, have potential harmful interactions when combined with vitamin E supplements. Talk to a healthcare professional before introducing daily vitamin E supplements, and be sure to discuss current medications you're taking.

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