Vitamin
E is the
term used for eight naturally occurring, fat-soluble nutrients called
tocopherols. Alpha-Tocopherol is essential, has the highest biological
activity, and predominates in many species.
In
human beings, vitamin E is the most important fat-soluble antioxidant.
It prevents the potentially harmful oxidation of fat compounds and
enhances the functioning of vitamin A. It is an anti-pollutant for
the lungs. It helps the healing of scar tissue when taken internally
and also when applied externally.
The
best natural sources are wheat germ, whole grains, vegetable oils,
soya beans, nuts, apples, apricots and green vegetables.
Vitamin
E deficiency may cause anemia, as a result of red blood cell destruction
and neurological dysfunction, myopathies, and diminished erythrocyte
life span. New clinical evidence from heavy drinkers suggests that
alcohol may increase oxidation of Alpha-Tocopherol. Increased demand
has also been observed in premature infants and patients with malabsorption.
Your
best bet for a good blend of mixed tocopherols in a softgel form
is LifeSource Nutrition’s Vitamin E with 20% Mixed Tocopherols.
Current
Research on Vitamin E:
Photo-protective
Effects: Tocopherol may play an essential role in the defense
of eye and skin cells against many light-induced diseases and/or
conditions. Vitamin E may share a protective role in the membranes
of plant and animal cells that are naturally predisposed to photo-oxidative
stress. It may play a prophylactic role against diseases and conditions
of the eye (cataractogenesis and retinal photodeterioration) and
skin (erythrocyte photochemolysis, photoerythema, photoaging and
photocarcinogenesis).
• UV radiation can cause adverse effects such as sunburn,
immunologic suppression, photo-aging, skin tumors and photosensitivity
reactions. In a study looking at protective effects of vitamin C
and vitamin E against sunburn, researchers found combined vitamins
C and E reduced sunburn reaction. It was concluded that this might
help reduce risk for later UV-induced skin damage.
Crohn's Disease and Short Bowel Syndrome: Vitamin
E deficiency can result from malabsorption of the vitamin due to
fat malabsorption resulting from Crohn's disease with short-bowel
syndrome.
• A study reported in the American Journal of Clinical Nutrition
showed that vitamin E preparations may aid in intestinal absorption
of vitamin E in short-bowel syndrome. The study also showed that
vitamin E supplementation may help stem and allow for partial reversal
of the neurologic complications seen with vitamin E deficiency.
Heart Disease: Vitamin E may play a crucial role
in the pathogenesis of atherosclerosis. The hypothesis is that vitamin
E helps protects against the oxidation of unsaturated lipids in
the low-density lipoprotein (LDL) particle that initiates a complex
sequence of events leading to atherosclerotic plaque.
Stroke:
Increased dietary vitamin E concentrations may be associated with
lower risk of stroke. In a study done in 2000, vitamin E supplementation
decreased the risk of cerebral infarction, without elevating the
risk of subarachnoid hemorrhage. The authors concluded that vitamin
E supplementation may help prevent ischemic stoke in high-risk hypertensive
patients, although further studies are needed.
Alzheimer's
Disease and Dementia: There is increased oxidative damage
in the brain of Alzheimer's disease (AD) patients and excess of
free radicals. Vitamin E can prevent free-radical-mediated cell
death and possibly diminish cognitive deterioration. The results
of a clinical trial in 2000 showed that treatment with vitamin E
delayed the time to important functional endpoints. It suggested
that vitamin E may slow the disease progression in moderately advanced
AD patients.
• The use of vitamin C and E supplements may protect against
the development of dementia and poor cognitive functioning. Results
from a study on dementia in elderly men suggested that vitamins
E and C might protect against vascular dementia and possibly enhance
cognitive function later in life.
Diabetes:
Individuals with low vitamin E concentrations may be at greater
risk for insulin-dependent diabetes mellitus (IDDM). In 1999, a
study published in the Journal of Internal Medicine found an inverse
association between serum a-tocopherol concentration and occurrence
of IDDM. Therefore, vitamin E may provide protection against IDDM,
which supports the hypothesis that antioxidants may play a crucial
role in the pathogenesis of IDDM.
• Type 2 diabetes is associated with increased oxidative stress,
which is related to imbalance in the cardiac autonomic nervous system.
Antioxidants, such as vitamin E may have beneficial effects on the
cardiac autonomic nervous system. A study on patients diagnosed
with type 2 diabetes and cardiac autonomic neuropathy showed that
600-mg/d vitamin E administration for 4 months was associated with
decreased plasma concentrations of glycated hemoglobin, insulin,
norepinephrine, and epinephrine. Vitamin E also improved indexes
of oxidative stress. Researchers concluded that chronic vitamin
E administration improved the ratio of cardiac sympathetic to parasympathetic
tone in patients with type 2 diabetes.
Immune
System: Vitamin E acts as an antioxidant and can assist
in modulation of the immune system. A study investigated the immunologic
and antioxidant effects of vitamin E supplementation in healthy
Chinese men and women. The data showed elevated plasma vitamin E
concentrations and depression in plasma malondialdehyde and urinary
DNA adduct 8-hydroxy-2'-deoxyguanosine. The oxidative stress of
T-lymphocyte is lowered significantly by vitamin E supplementation.
Since it is known that high levels of oxidative stress such as H2O2
inhibited T-cell proliferation, this suggests that vitamin E has
an important role in immune function.
Cataracts:
Epidemiological studies show a protective role of vitamins as antioxidants
in the prevention of age-related cataracts and macular degeneration.
In a review of 11 studies, 8 studies found vitamin E was inversely
correlated with cataract risk. Based on the observations, researchers
concluded that a diet high in vitamins C, E and carotenoids, may
aid in decreasing the development of cataracts and age related macular
degeneration.
Nonalcoholic
Steatohepatitis in Children: A study was done looking at
the effects of vitamin E in lowering serum aminotransferase and
alkaline phosphatase concentrations in children with nonalcoholic
steatohepatits (NASH) that is associated with obesity. The a-tocopherol
concentrations increased significantly with vitamin E supplementation
and the serum aminotransferase and alkaline phosphatase concentrations
normalized. Researchers concluded that children with NASH should
be encouraged to be involved in a weight loss regimen and consider
taking supplemental a-tocopherol.
Natural-vs.-Synthetic
Vitamin E: Natural and synthetic forms of a-tocopherol
have been shown to be absorbed equally well. A study giving subjects
various doses of natural and synthetic vitamin E showed significantly
less oxidation of low-density lipoprotein cholesterol (LDL-C) in
the subjects given either form of 400 or 800 IU of vitamin E. Researchers
concluded that both natural and synthetic forms of vitamin E are
as effective inhibiting the oxidation of LDL-C in humans. However
natural is always the best way to get absorption into your blood
stream.
| Supplement
Facts |
|
%DV |
| |
|
|
| Serving
Size: 1 Softgel |
|
|
| Amount
Per Serving: 400 i.u. |
|
|
| Servings
per Container: 100 |
|
|
| |
|
|
Vitamin
E
(d-alpha tocopherol, plus beta,delta, and gamma tocopherols)
|
400
I.u. |
1330%
|
|