Sunday, December 11, 2005

antiaging diet

anti-aging diet
Scientists have repeatedly demonstrated that undernutrition (as distinguished from malnutrition) extends the lives of laboratory animals. Researchers Dr. Roy Walford and Richard Weindruch of the University of California at Los Angeles School of Medicine recently achieved a 30 percent increase in the maximum life span of animals whose diets were restricted in adulthood. They gradually reduced the intake of their animals, down to about 60 percent of their normal diet. Experimental underfeeding did not merely delay death, it delayed aging. The lack of extra calories forestalled the development and hence the decay of the immune system. In other underfeeding experiments, the cancer rate dropped markedly.
Because undernutrition can easily lead to malnutrition, a doctor's supervision is necessary before undertaking such a program. An optimal human diet is being developed. At Temple University Medical School in Philadelphia, Dr. Arthur Schwartz is working with an adrenal-gland product called dehydroepiandrosterone, or DHEA. He suggests that use of DHEA may duplicate the anti-aging and anti-cancer effects of caloric restriction.

See also AGING, BIOLOGICAL THEORY OF.
Conniff, R. "Living Longer," in Aging, Goldstein, E. C., ed. Vol. 2, Art. 8. Boca Raton, Fl.: Social Issues Resource Series, Inc., 1981.
Walford, R. The 120-Year Diet: How to Double Your Vital Years. New York: Simon and Schuster, 1987.


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