A sweet tooth isn't necessarily bad for your health — at least not when it comes to chocolate, hints a new study.
Researchers studying more than 33,000 Swedish women found that the more chocolate women said they ate, the lower their risk of stroke.The results add to a growing body of evidence linking cocoa consumption to heart health.
"Chocolate should be consumed in moderation as it is high in calories, fat, and sugar," Dr. Larsson said. "As dark chocolate contains more cocoa and less sugar than milk chocolate, consumption of dark chocolate would be more beneficial."
Larsson and her colleagues, whose findings appear in the Journal of the American College of Cardiology, tapped into data from a mammography study that included self-reports of how much chocolate women ate in 1997. The women ranged in age from 49 to 83 years. Over the next decade, there were 1,549 strokes, and the more chocolate women ate, the lower their risk. Among those with the highest weekly chocolate intake — more than 45 grams — there were 2.5 strokes per 1,000 women per year. That figure was 7.8 per 1,000 among women who ate the least (less than 8.9 grams per week). Scientists speculate that substances known as flavonoids, in particular so-called flavanols, may be responsible for chocolate's apparent effects on health.
According to Larsson, flavonoids have been shown to cut high blood pressure, a risk factor for stroke, and improve other blood factors linked to heart health. Whether that theoretical benefit translates into real-life benefits remains to be proven by rigorous studies, however.
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