Niacin and Alzheimer's Disease
Researchers from the Rush Institute for Health Aging in Chicago
studied local residents 65 years of age and older for more than
5.5 years. The older adults who got the least Niacin (a form of
vitamin B3) were 70% more likely to develop Alzheimer's disease
than those who got healthy amounts. Those who got the most Niacin
from their diets had a much slower mental decline than those who
got the least. The study is published in the August issue of the
Journal of Neurology, Neurosurgery, and Psychiatry.
Commentary by Jerry Hickey, R.Ph.
Niacin is found in many foods including:
Niacin is converted into NAD and NADP, two coenzymes needed to
convert carbohydrates, protein, and Fat into energy. Excessive
amounts of Niacin supplementation can cause an elevation of liver
enzymes, and the timed-release form of Niacin can actually be
toxic to the liver - this is not true with Niacinamide, the other
form of vitamin B3.
- Beans, Lentils, and Peanuts
- Chicken (white meat), Turkey, Salmon, Pork, Veal, Tuna, Halibut, and other Meats and Fish
- Nuts and Seeds
- Fortified Whole-Grain Cereals and Breads
- Green Leafy Vegetables
Elite Athletes May have Enlarged hearts
A recent study from France shows that over 50% of professional
cyclists have enlarged hearts. This may have implications for
screening elite athletes for heart conditions. Approximately 12%
of the cyclists had such a great enlargement of the left ventricle
that it could actually effect heart function. The study appears in
the July 7th issue of the Journal of the American College of
Resveratrol May Extend Maximal Lifespan
Restricting how much you eat throughout your life may extend your
lifespan. Research has shown this to be true in primates and other
life forms. However, restricting calories in dogs and monkeys often
made them lethargic and infertile. This new study adds to existing
evidence that Resveratrol, the ingredient that makes red wine a
healthy drink, mimics caloric restriction and may extend life beyond
a normal span. David Sinclair of Harvard Medical School says that
taking a pill of Resveratrol may have the same benefits of strict
dieting giving people a longer, and healthier life. Sir-2 molecules
are involved in the anti-aging effects of lifelong calorie restriction
through strict dieting. These Sir-2 molecules are found in creatures
ranging from bacteria (including yeast) to humans. A prior study
shows that Resveratrol greatly extended the life of yeast cultures.
In the current study Resveratrol was given to fruit flies and worms
that share the Sir-2 molecules with humans. Resveratrol made these
animals healthier and they lived longer no matter how much they ate.
The study appears in the July 15th issue of Nature.