3. Walnuts
Don’t let the wrinkled shell fool you walnuts are doing serious work for your arteries. They’re one of the richest plant sources of alpha-linolenic acid, a type of omega-3 that helps the lining of your blood vessels relax and function properly. People who snack on a small handful of walnuts regularly tend to show better artery flexibility and lower rates of heart disease in long-term studies. About seven walnuts a day, raw and unsalted, is all it takes. Swap them in for chips or crackers and your heart gets the upgrade.
