Eat more, die young: Why eating a diet very low in nutrients can extend lifespan

A new evolutionary theory claims that consuming a diet very low in nutrients can extend lifespan in laboratory animals, a finding which could hold clues to promoting healthier aging in humans. Scientists have known for decades that severely restricted food intake reduces the incidence of diseases of old age, such as cancer, and increases lifespan. The most widely accepted theory is that this effect evolved to improve survival during times of famine.

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