A Can Of Soda A Day Keeps Your Last Years Away

Researchers from UCSF looked at roughly 5,000 adults with no diabetes or heart problems and asked themselves how sugary beverages affect lifespan. They analyzed drinkers of normal, sugary sodas, of sugary flat drinks, of diet sodas, and of 100% fruit juice drinks. To figure out lifespan, they looked at telomeres, which are endcaps on chromosomes, and which have been shown to correlate with how long a person lives. Those with shorter telomeres tend to age faster, die earlier and have more cancer. And it turned out that people who drink sugary sodas regularly, have shorter telomeres.

Warning label on a can of soda

Diet sodas didn’t seem to have any correlation with telomere length, though there are other problems with them. Non-carbonated sugary sodas had no correlation either. Regularly drinking fruit juice correlated with longer telomeres, though eating the actual fruit, instead, has the added benefit of healthy fiber. But for sugary sodas, extrapolating additional aging from how much the telomeres were shorter, the study found that drinking 8oz per day (about two-thirds of a can) shortened lifespan by 1.9 years, and 20oz shortened it by 4.6 years — the same amount as smoking.

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From American Journal of Public Health, via Time

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