Dark chocolate, often praised as a "healthy indulgence," may offer more than just a rich and satisfying flavor. A new study published in The BMJ highlights its potential to reduce the risk of type 2 diabetes (T2D). Researchers analyzed data from over 190,000 participants over 30 years, revealing that consuming dark chocolate regularly—five or more servings per week—was associated with a 21% reduced risk of developing T2D. In contrast, milk chocolate consumption showed no such benefits and was linked to long-term weight gain, a known diabetes risk factor.
The role of dark chocolate
Dark chocolate contains high levels of polyphenols, natural antioxidants that may improve insulin sensitivity and reduce inflammation—key factors in lowering diabetes risk. Each serving of dark chocolate consumed weekly contributed to a 3% reduction in diabetes risk, underscoring its potential role in preventive health.
Milk chocolate and diabetes risk
Milk chocolate, on the other hand, may pose challenges for weight management due to added sugars and lactose. This weight gain contributes to a higher diabetes risk, making dark chocolate the preferable choice for health-conscious consumers.
Experts advocate moderation and lifestyle changes
While the findings suggest health benefits from dark chocolate, researchers and experts emphasize moderation. Incorporating dark chocolate into a balanced diet, alongside regular exercise and reduced refined sugar intake, remains crucial for diabetes prevention.
Limitations and future research
The study lacked data on the cocoa content or specific brands of chocolate consumed, and researchers suggest further randomized trials to explore these factors. Future studies could confirm the precise mechanisms by which dark chocolate impacts metabolic health.