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Red wine, in moderation, has long been thought of as heart healthy. The alcohol and certain substances in red wine called antioxidants may help prevent coronary artery disease, the condition that leads to heart attacks.

Any links between red wine and fewer heart attacks aren't completely understood. But part of the benefit might be that antioxidants in red wine may increase levels of high-density lipoprotein (HDL) cholesterol (the "good" cholesterol) and protect against cholesterol buildup.

Doctors don't recommend that you start drinking alcohol for heart benefits, especially if you have a family history of alcohol addiction. Too much alcohol can have many harmful effects on your body.

But if you already enjoy a glass of red wine with your evening meal, drinking it in moderation appears to help your heart.