A recent Italian study suggests that eating a small piece of dark chocolate every day can reduce the inflammation that leads to heart disease. Scientists from the Research Laboratories of the Catholic University in Campobasso and the National Cancer Institute of Milan found that eating 6.7 grams of dark chocolate per day—that’s the equivalent of eating one Hershey’s dark chocolate bar during the course of a week—can lower your chance of pericarditis (heart inflammation).

Past research has found that people with low levels of C-reactive protein in their blood have lower levels of inflammation. This study found that people who regularly eat dark chocolate had significantly lower levels of C-reactive protein. Pericarditis—inflammation of the sac that surrounds and supports the heart—can lead to strokes and may even trigger heart attacks.

The bad news? Milk chocolate does not seem to have the same effect. Oh well.

Learn more about pericarditis here.