c aronoff assignment-unit 4 regarding vitamin e

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BY CRAIG S ARONOFF KAPLAN UNIVERSITY HW499-01 PROFESSOR EARON DAVIS JULY 29, 2014 1 Vitamin E

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Page 1: C aronoff assignment-unit 4 regarding vitamin E

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BY CRAIG S ARONOFFKAPLAN UNIVERSITY

HW499 -01PROFESSOR EARON DAVIS

JULY 29 , 2014

Vitamin E

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Vitamin E – Introduction

The points I will be discussing in this presentation on Vitamin E are as follows:Vitamin E – Forms and FunctionsVitamin E – RequirementsVitamin E – FoodsVitamin E – SupplementsVitamin E – Effects of DeficiencyVitamin E – Health Benefits and Possible ProblemsVitamin E – Possible Health Concerns and

Interactions

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Vitamin E – Forms and Functions

Vitamin E is a fat-soluble micronutrient that is required by the body and is found in many foods.

Vitamin E functions as an antioxidant in the body, facilitating protection of cells from free radical damage that takes place when the food we consume is converted into energy in the body (NIHODS, 2011).

Vitamin E helps the immune system resist attacks from bacteria and/or viruses.

Vitamin E facilitates widening of blood vessels to keep blood clots from occurring inside of them (NIHODS, 2011).

Cells also use vitamin E to network with each other so that they could perform other significant functions.

Source: http://ods.od.nih.gov/factsheets/VitaminE-Consumer/

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Vitamin E - Requirements

The recommended daily allowance (RDA) for vitamin E is listed below: Birth to 6 months – 4 mg (6 IU) (NIHODS, 2011). Infants 7-12 months – 5 mg (7.5 IU) Children 1-3 years – 6 mg (9 IU)Children 4-8 years – 7 mg (10.4 IU) Children 9-13 years – 11 mg (16.4 IU) (NIHODS, 2011).Teens 14-18 years – 15 mg (22.4 IU)Adults – 15 mg (22.4 IU) Pregnancy – 15 mg (22.4 IU) Breastfeeding – 19 mg (28.4 IU) (NIHODS, 2011).

Source: http://ods.od.nih.gov/factsheets/VitaminE-Consumer/

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Vitamin E Foods

Some good sources of vitamin E are vegetable oils such as wheat germ, sunflower, and safflower oils, as well as corn and soybean oils (Schlenker & Roth, 2011).

Other good sources of vitamin E are various types of nuts such as peanuts, hazelnuts, almonds, and sunflower seeds.

Some good sources of vitamin E that come from the green vegetables are spinach and broccoli.

Vitamin E is found in some breakfast cereals, fruit juices, margarines and spreads, and other foods that are supplemented by the food manufacturers (Schlenker & Roth, 2011).

Source: Schlenker, E. D., & Roth, S. L. (2011). Williams’ essentials of nutrition and diet therapy (Tenth Ed.). St. Louis, Missouri: Elsevier Mosby Publishers.

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Vitamin E Supplements

Many daily multivitamin-mineral supplements provide around 30 IU of vitamin E.

Vitamin E-only supplements typically provide 100 to 1,000 IU per pill (NIHODS, 2011).

The amount of vitamin E in vitamin E-only supplements typically surpasses the recommended daily allowances.

All forms of vitamin E have different strengths, or levels of activity in the body (NIHODS, 2011).

Vitamin E from natural food sources are listed as "d-alpha-tocopherol" on food packaging and supplement labels.

Synthetic, man-made vitamin E is listed as "dl-alpha-tocopherol" (NIHODS, 2011).

Source: http://ods.od.nih.gov/factsheets/VitaminE-Consumer/

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Vitamin E Deficiency

Vitamin E deficiency is typically related to specific diseases involving fat that is not being digested or absorbed by normal mechanisms (NIHODS, 2011).

Examples of vitamin E deficiency are Crohn's disease, cystic fibrosis, and some uncommon genetic diseases such as abetalipoproteinemia and ataxia with vitamin E deficiency (AVED) (NIHODS, 2011).

Vitamin E requires a specific amount of fat for the digestive system to absorb it.

Vitamin E deficiency can affect nerves and muscles. A weakened immune system is another sign of a vitamin E

deficiency (NIHODS, 2011).

Source: http://ods.od.nih.gov/factsheets/VitaminE-Consumer/

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Vitamin E Health Benefits/Problems

Studies have indicated consuming larger quantities of vitamin E from supplements may lower chances of developing heart disease (NIHODS, 2011).

The majority of research indicates vitamin E does not help to prevent cancer and could possibly be harmful in certain cases.

One study showed a link between long term use of vitamin E supplements for at least ten years and a lower chance of dying from bladder cancer (NIHODS, 2011).

It is possible that vitamin E dietary supplements and other antioxidants could interact with chemotherapy and radiation therapy.

Source: http://ods.od.nih.gov/factsheets/VitaminE-Consumer/

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Vitamin E Health Concerns

Consuming vitamin E in foods does not pose any danger or cause any harm.

Taking high dose vitamin E supplements may raise the chances of bleeding (NIHODS, 2011).

Recent research has indicated intakes of vitamin E under the upper safe levels of 1,500 IU/day for food, and 1,100 IU/day for supplements could increase the chances of men getting prostate cancer.

Taking vitamin E could increase chances of dying in certain adults with other chronic health conditions, but is not the case with healthy people (NIHODS, 2011).

Source: http://ods.od.nih.gov/factsheets/VitaminE-Consumer/

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Vitamin E Interactions

Vitamin E supplements may interact or hinder other drugs an individual is taking at the same time.

Vitamin E raises bleeding chances in people taking anticoagulant or antiplatelet medicines, such as warfarin (Coumadin®) (NIHODS, 2011).

One study indicated vitamin E, vitamin C, selenium, and beta-carotene, when combined, lowered heart-protective effects of two drugs taken in combination, a statin and niacin, to affect blood-cholesterol levels (NIHODS, 2011).

When going through chemotherapy or radiation therapy for cancer, antioxidant supplements could interfere with the effects of these treatments (NIHODS, 2011).

Source: http://ods.od.nih.gov/factsheets/VitaminE-Consumer/

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More About Vitamin E – Part 1

General information on vitamin E can be found at: Office of Dietary Supplements Health Professional Fact Sheet on Vitamin E Vitamin E MedlinePlus®

Additional information relating to food sources of vitamin E can be found at: U.S. Department of Agriculture's (USDA's) National Nutrient Database. Nutrient List for vitamin E (listed by food or by vitamin E content), USDA.

Additional information on buying dietary supplements can be found at: Office of Dietary Supplements Frequently Asked Questions: Which brand(s) of

dietary supplements should I purchase?

Additional information on the government's food guidance system can be found at: ChooseMyPlate - http://www.choosemyplate.gov/ Dietary Guidelines for Americans - http://www.health.gov/dietaryguidelines/

Source: http://ods.od.nih.gov/factsheets/VitaminE-Consumer/

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More About Vitamin E – Part 2

Additional information on vitamin E can be found at:The Natural Medicine Journal at: http://natural medicinejournal.com/journal/2011-12/research- behind-vitamin-eThe NIH National Center for Complementary and Alternative Medicine (NCCAM) at: http:// nccam.nih.gov/health/vitamins/EDr. Weil.com at: http://www.drweil.com/drw/u/ ART02813/facts-about-vitamin-e

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References

National Institutes of Health Office of Dietary Supplements. (2011). Vitamin E. Retrieved from: http://ods.od.nih.gov/factsheets/VitaminE- Consumer/Schlenker, E. D., & Roth, S. L. (2011) Williams’ essentials of nutrition and diet therapy (Tenth Ed.). St. Louis, Missouri: Elsevier Mosby Publishers.