Recent studies suggest that cocoa, consumed in moderation, can have a healthy effect on the heart. Cocoa has flavonols that can reduce cell damage, resulting in a healthier heart, as noted by the Mayo Clinic.
Chocolate should always be consumed in moderation because the chocolate most people eat is full of fat and sugar. Too much fat and sugar inevitably lead to weight gain and high blood pressure, which can lead to stroke and heart attack.
The best way to gain the benefits of chocolate is by eating cocoa powder. Cocoa powder can be sprinkled on other foods or dark chocolate can be enjoyed in small amounts. More research is needed to confirm chocolate's benefits.