• Vitamin E

    Image for nut articleVitamin E is a fat-soluble vitamin. Fat-soluble vitamins are stored in the liver and fatty tissues. There are eight different forms of vitamin E—each has its own biologic activity. Alpha-tocopherol is the most active form of vitamin E in humans. It is an antioxidant—a substance that acts to protect the body's cells against the effects of free radicals. Free radicals are normal by-products of metabolism, but they can cause cell damage.

    Functions

    Vitamin E's functions include:
    • Acting as an antioxidant in the body
    • Helping with immune system function

    Recommended Intake:

    Age Group Recommended Dietary Allowance
    Females Males
    1-3 6 milligrams (mg) 6 mg
    4-8 7 mg 7 mg
    9-13 11 mg 11 mg
    14-18 15 mg 15 mg
    19+pregnancy 15 mg n/a
    19+ 15 mg 15 mg
    19+ lactation 19 mg n/a

    Vitamin E Deficiency

    Symptoms of vitamin E deficiency include:
    • Neurologic symptoms, such as impaired balance and coordination
    • Muscle weakness
    • Retinal degeneration (thinning of the lining of the inner eye)
    Vitamin E deficiency is rare. In developed countries, vitamin E deficiency is seen only in certain conditions.
    People with vitamin E deficiency may also be deficient in vitamins A, D, and K.

    Vitamin E Toxicity

    As a fat-soluble vitamin, vitamin E is stored in the body and is not excreted in the urine like most water-soluble vitamins. Therefore, it is possible for vitamin E to accumulate in the body. The tolerable upper intake level (UL) for adults of vitamin E from dietary sources and supplements combined is 1,000 milligrams daily. For children the UL is lower.

    Major Food Sources

    Food Serving size Vitamin E content
    milligrams (mg)
    Wheat germ oil 1 tablespoon 20.3
    Sunflower seeds, dry roasted 1 ounce 7.4
    Sunflower oil 1 tablespoon 5.6
    Hazelnuts, dry roasted 1 ounce 4.3
    Safflower oil 1 tablespoon 4.6
    Almonds, dry roasted 1 ounce 6.8
    Peanut butter 2 tablespoon 2.9
    Corn oil 1 tablespoon 1.9
    Mango, raw ½ cup 0.7
    Peanuts, dry roasted 1 ounce 2.2
    Broccoli, boiled ½ cup 1.9

    Health Implications

    Populations at Risk for Vitamin E Deficiency

    The following populations may be at risk for vitamin E deficiency and may require a supplement:
    • People with a reduced ability to absorb dietary fat—Because vitamin E is a fat-soluble vitamin, fat is required for its absorption. Some conditions that can cause fat malabsorption include Crohn's disease, cystic fibrosis, celiac disease, pancreatic enzyme deficiency, and liver disease.
    • Patients after gastric bypass surgery
    • Very low birth weight infants—These infants are usually under the care of a neonatologist, who will evaluate and treat the premature infant's exact nutrition needs.
    • People who suffer from abetalipoproteinemia—This is a rare inherited disorder of fat metabolism that results in poor absorption of dietary fat and vitamin E.

    Antioxidant Capabilities

    Free radicals are normal by-products of metabolism, but they can cause chain reactions that result in significant cell destruction. This cell destruction can, in turn, increase the risk for chronic diseases, including certain forms of cancer. Antioxidants have the ability to stop this chain reaction. Vitamin E functions in the body as an antioxidant. Because of this antioxidant capability, vitamin E is being studied for a possible role in chronic disease prevention. However, so far there is not good evidence that vitamin E helps in preventing cancer or heart disease. And in some studies, high doses of supplements actually increased the risk of death.

    Tips for Increasing Your Vitamin E Intake:

    To help increase your intake of vitamin E:
    • Sprinkle wheat germ on your cereal or oatmeal.
    • Add sunflower seeds or nuts to a salad or stir-fry.
    • Add mango or blueberries to yogurt for an afternoon snack.
    • If you take a vitamin supplement, make sure it contains vitamin E.

    RESOURCES

    Academy of Nutrition and Dietetics http://www.eatright.org

    United States Department of Agriculture http://www.usda.gov/wps/portal/usdahome

    CANADIAN RESOURCES

    Dietitians of Canada http://www.dietitians.ca

    Health Canada Food and Nutrition http://www.hc-sc.gc.ca/fn-an/index-eng.php

    References

    Bariatric surgery. EBSCO DynaMed website. Available at: http://www.ebscohost.com/dynamed/what.php. Updated January 12, 2013. Accessed February 7, 2013.

    Dietary supplement fact sheet: vitamin E. Office of Dietary Supplements: National Institutes of Health website. Available at: http://ods.od.nih.gov/factsheets/VitaminE-HealthProfessional/. Updated October 11, 2011. Accessed February 7, 2013.

    Lippman SM, Klein EA, Goodman PJ, et al. Effect of selenium and vitamin E on risk of prostate cancer and other cancers: the Selenium and Vitamin E Cancer Prevention Trial (SELECT). JAMA. 2009 Jan 7;301(1):39-51.

    Miller ER 3rd, Pastor-Barriuso R, Dalal D, Riemersma RA, Appel LJ, Guallar E. Meta-analysis: high-dosage vitamin E supplementation may increase all-cause mortality. Ann Intern Med. 2005 Jan 4;142(1):37-46.

    Stratton J, Godwin M. The effect of supplemental vitamins and minerals on the development of prostate cancer: a systematic review and meta-analysis. Fam Pract. 2011 Jun;28(3):243-52.

    Vitamin E. EBSCO DynaMed website. Available at: http://www.ebscohost.com/dynamed/what.php. Updated October 23, 2012. Accessed February 7, 2013.

    Vitamin E deficiency. EBSCO DynaMed website. Available at: http://www.ebscohost.com/dynamed/what.php. Updated April 27, 2010. Accessed February 7, 2013.

    Revision Information

  • Join WellZones today.

    Make a Change For LifeLearn more

    Wellmont LiveWell is creating a new tradition of wellness in the mountains by providing individuals with tools and encouragement to live healthier lifestyles.

  • HeartSHAPE Spotlight

    At risk for a heart attack? Learn more

    Fight heart disease early and prevent heart attacks with HeartSHAPE® - a painless, non-invasive test that takes pictures of your heart to scan for early-stage coronary disease.

  • Calories and Energy Needs

    Calorie NeedsLearn more

    How many calories do you need to eat each day to maintain your weight and fuel your physical activity? Enter a few of your stats into this calculator to find out.

  • Ideal Body Weight

    Ideal Body WeightLearn more

    Using body mass index as a reference, this calculator determines your ideal body weight range. All you need to do is enter your height.

  • Body Mass Index

    Body Mass IndexLearn more

    This tool considers your height and weight to assess your weight status.


  • Can we help answer your questions?

    Wellmont Nurse Connection is your resource for valuable health information any time, 24 hours a day, seven days a week. Speak to a Nurse any time, day or night, at (423) 723-6877 or toll-free at 1-877-230-NURSE.