Low-cal longevity questioned

Limiting food intake in monkeys fails to extend survival

Decades of research have linked low-calorie diets with extended survival, but a new report finds that rhesus monkeys on strict diets don’t live longer than their counterparts getting a standard diet.

In a new study, rhesus monkeys on a calorie-restricted diet (such as the 27-year-old male at left) did not live longer than those consuming a more normal diet (like the male of the same age at right).