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Want to prevent Alzheimer’s disease? Eat less! 10-15-08
Want to prevent brain diseases like Alzheimer's disease or simply slow
age-related mental decline? Forget about taking B vitamins like B6, B12 and
folate, according to one study. Instead reduce your intake of calories,
according to another study.
B vitamins have been known to be beneficial to the brain. But if you have
already got a brain disease like Alzheimer's, then taking B vitamin supplements
does not seem to help you, according to a study in the Oct. 15 issue of The
Journal of the American Medical Association.
The study found people who had had Alzheimer's disease and then took high doses
of B vitamins simply did not experience beneficial effect on the primary
cognitive measure. Paul S. Aisen coauthor of the study at the University of
California in San Diego, California warned that people should not count on
taking high doses of B vitamins to slow mental decline.
A review published in the Nov 2008 issue of Current Opinion in Clinical
Nutrition and Metabolic Care suggests, however, that by restricting your intake
of calories, a practice known as caloric restriction, you may not have to
contract Alzheimer's disease in the first place.
The review led by Gillette-Guyonnet S and Vellas B. from aGérontopôle Toulouse,
France bInserm, U558, Toulouse, France says caloric restriction does not just
extend lifespan, but may benefit brain functioning as well.
The authors say in their report that "it has been proven that caloric
restriction prevents age-related neuronal damage.” The only thing that remians
uncertain is how caloric restriction affects brain functions.
They predict there might be a possibility in the future that this dietary
practice will be proposed to prevent or even to treat neurodegenerative
disorders such as Alzheimer's disease.
The idea is not too far-fetching. Caloric restriction could help cognitive
capability through "anti-inflammatory mechanisms, reduction of neural oxidative
stress, promotion of synaptic plasticity, induction of various stress and
neurotrophic/neuroprotective factors," according to the authors.
It is known for a fact at least that caloric restriction may prevent beta-amyloid
neuropathology in Alzheimer transgenic models.
Reading the reports of these two studies, what are we going to do with the risk
of brain diseases like Alzheimer's or Parkinson's disease?
We now know that next time we go to some China Buffet, we'd better not eat too
much because caloric restriction is known to extend out lifespan, probably by
protecting against Alzheimer's and many other chronic diseases.
But we should not forget taking B vitamins regardless of the Aisen study because
these vitamins are beneficial to the brain.
The Aisen study was not meant to explain why B vitamins folic acid, B6 and B12
do not work for Alzheimer’s patients. It’s possible that patients did not take
the vitamin supplements properly or simply they could not absorb these
nutrients.
Early studies have found that deficiency of these vitamins were linked to high
risk of Alzheimer’s, suggesting that these patients were likely unable to absorb
these vitamins properly.
Alzheimer’s disease affects an estimated 4.5 million Americans, according to the
U.S. National Institutes of Health. About 5 percent of people ages 65 to 74 and
almost half of those ages 85 suffer the disease.
There is no cure for Alzheimer’s. People with the disease may experience memory
loss, difficulty to trouble remembering recent events, activities, or the names
of familiar people or things. This disease does not result from normal aging.
Comment:
A great Article on Fasting Here:
The most important preventative is not consuming or wearing aluminum containing things or other heavy metals as well as daily mental exercise.
