Amino acid recipe could be right for long life

In fruit flies, a low-calorie diet with extra amounts of methionine extends lifespan without harming fertility

By Tina Hesman Saey, 15:47 PM December 2, 2009

Long life may stem from a proper imbalance of dietary nutrients.

A new study in fruit flies suggests that the life-extending properties of caloric restriction may be due not only to fewer calories in the diet, but also to just the right mix of protein building blocks, called amino acids. The study, published online December 2 in Nature, may help explain some of the health benefits of restricted-calorie diets.

Coupled with other data, the new study should prompt researchers to reevaluate wh...

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