A long-term U.S. study following nearly 192,000 adults found that eating dark chocolate regularly may lower the risk of type 2 diabetes. Participants who ate five or more servings per week had about a 21% reduced risk compared to those who rarely ate it. Each additional serving lowered risk slightly further.
The benefit was strongest in people who also followed an overall healthy diet rich in fruits, vegetables, and flavonoids—showing up to a 34% lower risk. Milk chocolate, however, did not provide protection and was linked to weight gain.
Dark chocolate’s positive effects are thought to come from compounds like flavanols, which can improve insulin sensitivity and reduce inflammation.
Experts recommend choosing dark chocolate with higher cocoa content, eating it in moderation, and focusing on overall healthy lifestyle habits.
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