Calorie Restriction Falters in the Long Run

Calorie Restriction Falters in the Long Run

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To those who enjoy the pleasures of the dining table, the news may come as a relief: drastically cutting back on calories does not seem to lengthen lifespan in primates. The verdict, from a 25-year study in rhesus monkeys fed 30% less than control animals, represents another setback for the notion that a simple, diet-triggered switch can slow ageing. Instead, the findings, published this week in Nature, suggest that genetics and dietary composition matter more for longevity than a simple calorie count.

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