Australian researchers have found that eating a block of dark chocolate daily over 10 years has “significant” benefits for high-risk cardiac patients and could prevent heart attacks and strokes.

A study of 2,013 Australians conducted at Melbourne’s Monash University found that the consumption of 100 grams (3.5 ounces) of chocolate with a 70 percent or higher cocoa content every day was an effective measure to reduce risk.

Lead researcher Ella Zomer said the team found 70 fatal and 15 non-fatal cardiovascular events per 10,000 people could be prevented over 10 years if patients at risk of having a heart attack or stroke ate dark chocolate.