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Facts about Vitamin E

Vitamin E

No conclusion could be made from this trial about whether supplemental vitamin E has the same effect, however (BBC 2005).

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Vitamin E

Vitamin E is widely used in industry as an inexpensive antioxidant (namely for cosmetics and foods).

Vitamin E

Many naturopathic and orthomolecular medicine advocates suggest that vitamin E supplements contain at least 20 percent by weight of the other natural vitamin E isomers.

Vitamin E

The structure natural a-tocopherol, the most potent natural source of vitamin E activity, was elucidated shortly thereafter, in 1938 (Fernholz 1938).

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Vitamin E

The methodology, interpretation and reporting of conventional vitamin E studies have even become contentious within conventional medicine circles (Carter 2005).

Vitamin E

Vitamin E containing products are commonly used in the belief that vitamin E is good for the skin; many cosmetics include it, often labeled as tocopherol acetate, tocopheryl linoleate, or tocopheryl nicotinate.

Vitamin E

Later studies saw no difference between the rate of absorption of these forms of vitamin E and found that tocopheryl esters and free tocopherol had the same bioavailability (Cheeseman et al.

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Vitamin E

The most sensitive membranes to toxic oxygen appear to the the membranes of nerves and thus vitamin E deficiency damages the nervous system (Brody 2004).

Vitamin E

The terms vitamin E and tocopherol are sometimes used interchangeably but they are not synonymous.

Vitamin E

Conventional medical studies on vitamin E, as of 2006 and as below, use either a synthetic all-racemic ("d, l-") alpha tocopheryl ester (acetate or succinate) or a semi-synthetic d-alpha tocopheryl ester (acetate or succinate).

Vitamin E

Vitamin E deficiency causes neurological problems due to poor nerve conduction.

Vitamin E

The researchers suggested that it is unlikely that the vitamin E supplement provided any protection against cardiovascular disease in the HOPE study.

Vitamin E

Synthetic vitamin E derived from petroleum products is manufactured as all-racemic alpha tocopheryl acetate with a mixture of eight stereoisomers.

Vitamin E

There has been research that suggests vitamin E alone does not attenuate the development or progression of AMD (Taylor et al.

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Vitamin E

Vitamin E is a term that applies to a set of related tocopherols and tocotrienols.

Vitamin E

Some evidence associates higher intake of vitamin E with a decreased incidence of prostate cancer and breast cancer.

Vitamin E

Vitamin E is the generic descriptor for any of a group of several related fat-soluble organic compounds, tocopherols and tocotrienols, that act as vitamins with antioxidant properties.

Vitamin E

Other sources of vitamin E are whole grains, fish, peanut butter, goats milk, and green leafy vegetables.

Vitamin E

Vitamin E deficiency is very rare but can strike people with diseases that prevent absorption of dietary fats and fat soluble nutrients (Brody 2004).

Vitamin E

The 90-minute Bob Hope Christmas Specials were broadcast every holiday season until 1972.

Vitamin E

An initial study in humans saw large variability between different people's absorption of all these forms of vitamin E, with no statistically-significant differences seen between tocopheryl esters and the free tocopherol (Horwitt et al.

Vitamin E

Antioxidants such as vitamin E help protect against the damaging effects of free radicals, which may contribute to the development of chronic diseases such as cancer.

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Vitamin E

During feeding experiments with rats Herbert McLean Evans concluded, in 1922, that besides vitamins B and C, an unknown vitamin existed (Evans and Bishop 1922).

Vitamin E

Vitamin E exists in eight different forms, four tocopherols and four tocotrienols.

Vitamin E

Individuals with moderate to high intakes of dietary vitamin E were found to have a lower risk of Parkinson's.

Vitamin E

One IU of vitamin E is the biological equivalent of about 0.667 milligrams (2/3 milligrams exactly) of RRR-alpha-tocopherol (formerly named d-alpha-tocopherol or sometimes ddd-alpha-tocopherol).

Vitamin E

Tocotrienols, with four d- isomers, although less commonly known, also belong to the vitamin E family.

Vitamin E

Vitamin E also may block the formation of nitrosamines, which are carcinogens formed in the stomach from nitrites consumed in the diet.

Vitamin E

Preliminary research has led to a widely held belief that vitamin E may help prevent or delay coronary heart disease, but larger controlled studies have not confirmed such a benefit (Sesso et al.

Vitamin E

Vitamin E also is proposed to help prevent the formation of blood clots, which could lead to a heart attack.

Vitamin E

To date, human trials and surveys that have tried to associate vitamin E with incidence of cancer remain generally inconclusive.

Vitamin E

Due to this contradictory and confusing evidence, vitamin E or tocopherol supplements are not currently recommended for treating or preventing Alzheimer's disease (Boothby and Doering 2005).

Vitamin E

Alpha-tocopherol is the form of vitamin E that is preferentially absorbed and accumulated in humans (Rigotti 2007).

Vitamin E

The U.S. Dietary Reference Intake (DRI) Recommended Daily Amount (RDA) for a 25 year old male for Vitamin E is 15 milligrams(mg)/day.

Vitamin E

The term vitamin E should be used as the generic descriptor for all tocol and tocotrienol derivatives exhibiting qualitatively the biological activity of ?-tocopherol.

Vitamin E

The measurement of "vitamin E" activity in international units (IU) was based on fertility enhancement by the prevention of spontaneous abortions in pregnant rats relative to alpha-tocopherol.

Vitamin E

Vitamin E appears to serve the body by protecting membranes from toxic oxygen damage.

Vitamin E

Most studies about vitamin E have supplemented using only the synthetic alpha-tocopherol, but doing so leads to reduced serum gamma- and delta-tocopherol concentrations.

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Vitamin E

Some studies correlate additional cofactors, such as specific vitamin E isomers, for example, gamma-tocopherol and other nutrients such as selenium, with dramatic risk reductions in prostate cancer (Helzlsouer et al.

Vitamin E

Other health benefits of vitamin E have been proposed, such as helping to combat heart disease, protect against certain cancers, and promote skin health, with diverse research findings.

Vitamin E

The DRI for vitamin E is based on the alpha-tocopherol form because it is the most active form as originally tested.

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Vitamin E

Observational studies have associated lower rates of heart disease with higher vitamin E intake.

Vitamin E

A study of endocrine systems revealed that female hippopotamuses may begin puberty as early as 3 or 4 years of age.

Vitamin E

There has been speculation that vitamin E coupled with selenium may reduce the risk of prostate cancer (ACS 2008) by 30 percent (NCI 2008a).

Vitamin E

Fortified breakfast cereals are also an important source of vitamin E in the United States.

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Vitamin E

Other trials have tested if giving vitamin E supplements reduce the risk of Parkinson's disease, or if they can slow the progression of the disease.

Vitamin E

The IOM states that most North American adults get enough vitamin E from their normal diets to meet current recommendations.

Vitamin E

Similarly, a trial using vitamin E alone found that vitamin E supplementation produced no change in the risk of developing cataracts or the rate of progression of existing cataracts (McNeil et al.

Vitamin E

The U.S. Dietary Reference Intake (DRI) Recommended Daily Amount (RDA) for a 25 year old male for Vitamin E is 15 milligrams(mg)/day.