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Published: October 11, 2012 3:00 a.m.
Chocolate makes you smarter? Sweet!
Take this with a grain of salt, or perhaps some almonds or hazelnuts: A study ties chocolate consumption to the number of Nobel Prize winners a country has and suggests it’s a sign that the sweet treat can boost brainpower. No, this does not appear in the satirical Onion newspaper. It’s in the prestigious New England Journal of Medicine, which published it online Wednesday as a “note” rather than a rigorous, peer-reviewed study. The author – Dr. Franz Messerli, of St. Luke’s-Roosevelt Hospital and Columbia University in New York – writes that there is evidence that flavanols in green tea, red wine and chocolate can help “in slowing down or even reversing” age-related mental decline – a contention some medical experts may dispute. Nevertheless, he examined whether a country’s per-capita chocolate consumption was related to the number of Nobels it had won – a possible sign of a nation’s “cognitive function.” Using data from some major chocolate producers on sales in 23 countries, he found “a surprisingly powerful correlation.” Switzerland led in chocolate consumption and Nobels, when looked at according to population. The United States is in the middle of the pack with the Netherlands, Ireland, France, Belgium and Germany. At the bottom were China, Japan and Brazil. The study only includes Nobels through last year – not the ones being announced this week. It is possible, he admits, that chocolate isn’t making people smart, but that smart people who are more likely to win Nobels are aware of chocolate’s benefits and therefore more likely to consume it. Sven Lidin, the chairman of the Nobel chemistry prize committee, had not seen the study but was giggling so much when told of it that he could barely comment. “I don’t think there is any direct cause and effect,” Lidin said. “The first thing I’d want to know is how chocolate consumption correlates to gross domestic product.”