Eating a small amount of chocolate every week or so may decrease your risk of developing a serious type of irregular heart rhythm called atrial fibrillation.
A study in the journal Heart looked at data collected for a long-term study of about 55,500 people in Denmark.
Those who ate one serving, or about one ounce of chocolate per week, were 17 percent less likely to be diagnosed with AFib by the end of the study than those who reported eating chocolate less than once a month.
Eating cocoa or foods that contain it may help heart health because of they contain a high volume of flavanols. Those are compounds believed to have anti-inflammatory and anti-oxidant properties and they may relax blood vessels.