Good
health is the most important gift you can give yourself and your family.
We sift through the latest discoveries to bring you our expert advice
on lifestyle choices you can make to help you and your loved ones feel
your best and enjoy every day to the full.
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Vitamin
E supplements
If you’ve been taking vitamin E supplements, you’re not
alone. The positive results of early studies on the antioxidant led many
to take it in hopes of preventing or slowing everything from respiratory
infections to macular degeneration. But what proves hopeful in early,
preliminary studies doesn’t always pan out in larger research settings,
and vitamin E is a case in point.
Age-Related Macular Degeneration
Age-Related Macular Degeneration (AMD) is the breakdown of cells of
the macula, the small part of the eye that allows us to see
things sharply and in color. Little is known about what causes AMD, which
is the leading source of vision loss in people older than 55.
Early observational studies showed vitamin E might help prevent macular
degeneration. To test this theory, researchers recruited close to 1,200
participants between the ages of 55 and 80 to receive either a daily
vitamin E supplement or a placebo for four years. Participants underwent
annual eye exams to detect signs of development or progression of AMD
and changes in visual function.
The results of this study showed the incidence of AMD was similar among
participants in the two groups. In the vitamin E group 8.6% developed
AMD, whereas 8.1% in the placebo group did. Though this study clearly
indicates that vitamin E does not help prevent or slow the progression
of AMD, the study period was short, so it doesn’t prove that vitamin
E doesn’t help in the long run.
(British Journal of Medicine, July 6, 2002)
Respiratory Infections
Early studies showed that vitamins and minerals, particularly vitamin
E, may boost immune response in healthy elderly people. With this in
mind, Dutch researchers set out to investigate whether either of the
supplements lessens the rate and severity of respiratory infections in
the elderly.
The researchers enlisted 652 participants over the age of 60 and broke
them randomly into four groups. Each day, they either took a multivitamin
with minerals and a placebo, a vitamin E pill and a placebo, both a multivitamin
with minerals and vitamin E pill, or two placebos. After fifteen months
of follow-up, the researchers found that the rate of respiratory infections
did not differ among the groups. However, those who took vitamin E supplements
actually had respiratory infections that were more severe — they
were longer, caused more symptoms, and restricted more of the sufferer’s
activities.
(Journal of the American Medical Association, August 14, 2002)
February 2003 Update
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