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Get the free app no ads · no paywallHealth · 19 August 2026
Okinawan villagers born around 1890 to 1920, who ate a diet of mostly sweet potato, had a very high rate of people living past 100. Researchers found that this diet, also low in calories and animal fat, vanished after 1945 as American foods arrived. Male life expectancy then fell sharply in Okinawa, showing a clear link between diet and longevity.
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How did diet change in Okinawa? Why do diets affect longevity? What is the Okinawan diet?More briefs
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