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One of the most common questions heard by us is "What can
I do with nutrition to improve my vision or prevent loss of
eyesight." Indeed, loss of vision is the most feared disability,
particularly when someone in the family has an eye problem
or a 'high number'. Many of the problems that lead to visual
loss are related to lifestyle choices. Whether your concern
is a high degree of nearsightedness, cataract, macular degeneration
or diabetic retinopathy, changing your lifestyle will make
a difference. |
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Vision depends on a clear lens, the rich microcirculation
to the retina, and the visual nerve cells of the retina called
rods and cones. All of these can deteriorate with age, depending
on exposure to toxins and oxygen free radicals, poor dietary
habits, hardening of the arteries, and high blood pressure.
Diabetes leads to retinal disease because of damage to the
retinal arteries and to cataracts because of high blood sugar
levels. |
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| Preserving Eyesight
- Start with Diet |
First, eat a healthy diet with an emphasis on fresh vegetables
and fruits, plus whole grains, beans, seeds, and nuts. The
vitamins, minerals, essential fatty acids, and phytochemicals
that they provide are important for overall health as well
as the eyes. If you wish, add a small amount of organic, lowfat
yogurt. For non-vegetarians organic eggs and a small amount
of fish. Dairy products contain the milk sugar-lactose, a
combination of two simpler sugars, glucose and galactose.
Both glucose and galactose are converted to "sugar-alcohols,"
which can cause swelling of the human lens. They also attach
to proteins that then deposit in the lens. Both the lens swelling
and the sugar-protein deposits lead to cataracts. |
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To
avoid these sugar-protein combinations, in addition to reducing
milk-product consumption, it is wise to keep all added sugars
out of the diet. This means avoiding those addictive sweets
along with the sodas, cookies, pies, ice cream, and candy.
An American-style diet is a prescription for disaster when
it comes to your eyesight (and many other health issues).
Staying with a mostly vegetarian diet of natural, unpro-cessed
foods will help preserve the circulation to the retina, the
rods and cones, and the lens. |
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| Add Exercise for Circulation |
Exercise regularly. It helps to maintain a low blood pressure
and preserves the blood vessels (the retina is rich in small
blood vessels). Exercising for 45 minutes lowers blood pressure
for an additional 16 hours after finishing. Exercise also
helps to support the health of the cells that line the arteries,
called endothelium. These cells help relax the blood vessel
muscle and maintain blood flow-another benefit is improved
circulation to the heart through the coronary arteries. |
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| Ultraviolet protection |
The eyes are subject to a lot of oxidative damage to both
the lens and the retina because they are exposed to ultraviolet
light and a rich circulation of oxygen from the dense retinal
capillaries. Protecting the eyes from too much sun exposure
may help delay any degeneration of the lens and the retina.
This does not mean avoiding all sunlight. Some sun exposure
is healthy as long as it is in moderation. The action of sunlight
on the skin is important for the production of vitamin D.
UV-filtering lenses may provide some protection for the eyes,
if they actually do what they claim. Our team can verify whether
the UV-filtering lenses you wear are filtering UV light sufficiently.
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| Supplements that help
the eyes |
Many dietary supplements support eye health. They improve
vision and help protect the macula (the area of the retina
with the sharpest vision) and the lens. The usual antioxidants
such as vitamins E and C, and the trace minerals selenium
and zinc help the retina and the lens. Other helpful nutrients
are the amino acid taurine, carotenoids such as beta-carotene,
lycopene (found in tomatoes), lutein (from spinach), and the
anthocyanosides (related to bioflavonoids) found in grapes.
Lutein is present in the lens, suggesting an antioxidant role
in prevention of cataract and macular degeneration. |
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| A supplement program
for eyesight |
For a complete supplement program for the eyes, especially
as you get older, we recommend starting with a comprehensive
multivitamin and mineral diet. To that, add daily doses of
vitamins C (at least 3000 to 4000 mg) and E (400 to 800 IU),
lutein (10 to 20 mg), and lycopene (10 to 20 mg). It may be
a good idea to take ginkgo biloba (120 mg of standardized
extract), which helps the circulation in small blood vessels
and has been shown to protect the retina. |
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Put this entire program together, and you are likely to maintain
your vision well into advanced years, and you may well reverse
some of the damage that has already been done. |
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| Natural Remedies for
Diabetes |
Diabetes is a failure to properly metabolize sugar, specifically
blood glucose. It results from either the reduced function
of the pancreas, which produces insulin, or more commonly,
from the inability of the cells to respond to insulin, called
insulin resistance. Insulin is essential to move sugar into
the muscles, where it can be burned for energy. |
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Adult
onset diabetes (Type II) is almost always the result of poor
health habits and being overweight. Insulin and oral medications
are usually unnecessary if you exercise regularly, take your
supplements and eat the right diet-high fiber, complex carbohydrates,
low fat, and mostly vegetarian-these foods control blood sugar
and provide essential phytonutrients. |
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Changes
in diabetes include retinopathy, cataracts, hardening of the
arteries, and diabetic neuropathy-nerve degeneration with
numbness and tingling starting in the feet and legs. These
changes can be treated and prevented with lifestyle changes
and specific dietary supplements. |
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Even
Type I diabetics can reduce their insulin doses with a complete
approach to blood sugar management. However, medical supervision
of diabetes is usually essential, and we do not recommend
trying to manage diabetes by yourself. |
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| Supplements for diabetes |
Numerous supplements help diabetes. Unrelated to normal nutritional
levels, it is often necessary to take high doses of the trace
mineral chromium, up to 1000 mcg per day, to regulate blood
sugar, because diabetics are resistant to its effects. Chromium
improves insulin activity and lipid levels, and it is depleted
by a fatty, sugary American-style diet that is now spreading
around the world. |
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The
essential fatty acid GLA (gamma-linolenic acid), derived from
borage oil or primrose oil, can treat diabetic peripheral
neuropathy. The typical dose is 240 mg, from 1200 mg of borage
oil or 3000 mg of primrose oil. |
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The
antioxidant alpha-lipoic acid [as little as 100 to 300 mg
daily] might be adequate as a potent antioxidant. 600 mg will
improve blood sugar control and 1000 mg daily can reverse
diabetic neuropathy. These are in addition to your B complex,
extra vitamins C and E, coenzyme Q10, minerals, and all the
other nutrients that help eyesight. |
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Physical
activity appears to confer benefits to post-menopausal women
that go beyond just maintaining bone density. Women who get
regular moderate to vigorous exercise more than four times
a week are half as likely to get diabetes as those who do
not exercise. Even less exercise, as long as it is regular,
reduces the risk of diabetes. Of course, diet also helps by
maintaining a normal weight, and high fiber helps to control
blood sugar-even in those who are already diabetic, a vegetarian
diet of unprocessed, high-fiber foods helps. |
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