Summary

Scientists have discovered that the optimal diet for male fruit flies may depend strongly on whether they are reproducing, challenging long-standing assumptions about nutrition and aging. Led by researchers from the University of Liverpool's Department of Evolution, Ecology and Behavior, the international team used fruit flies to investigate how diet and reproductive activity influence lifespan and fertility. The team found that cholesterol, a key nutrient in the flies' diet, plays a surprising and context-dependent role.

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