It’s Official: Chocolate is Really Good For You

28 Apr It’s Official: Chocolate is Really Good For You

My name is Susan and I am a chocoholic. And I know I am not alone. But here’s the really good news, made official in a recent article by Gretchen Reynolds in the New York Times Magazine: the food ancient Mayans revered turns out to be really good for you. (Though not in the form of  bars that line grocery store shelves).

Read on for the skinny…

In recent years, large-scale epidemiological studies have found that people whose diets include dark chocolate have a lower risk of heart disease than those whose diets do not. Other research has shown that chocolate includes flavonols, natural substances that can reduce the risk of disease. But it hasn’t been clear how these flavonols could be affecting the human body, especially the heart. New findings from Virginia Tech and Louisiana State University, however, suggest an odd explanation for chocolate’s goodness: It improves health largely by being indigestible.

The good stuff: cacao beans

Researchers at Louisiana State reached this conclusion after simulating the human digestive system in glass vessels. One represented the stomach and the small intestine, with their digestive enzymes, and a second reproduced a large-intestine-like environment, with gut microbes from human volunteers. The scientists then added cocoa powder to the stomach vessel.

The “stomach” and “small intestine” broke down and absorbed some of the cocoa. But while many of the flavonols previously identified in chocolate were digested in this way, there was still plenty of undigested cocoa matter. Gut bacteria in the simulated colon then broke that down further into metabolites, small enough to be absorbed into the bloodstream and known to reduce cardiac inflammation. Finally, the last undigested cocoa matter, now mostly fiber, began to ferment, releasing substances that improve cholesterol levels. And there was another health-giving twist to this entire process: The gut microbes that digested the cocoa were desirable probiotics like lactobacillus. Their numbers appeared to increase after the introduction of the cocoa, while less-salutary microbes like staphylococcus declined in number.

These findings are broadly consistent with those from Virginia Tech,..

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