7 of 33

Avocado

How to prevent heart disease, the largest killer in the United States, according to the latest report from the National Center of Health Statistics? Eat more foods that help keep your heart healthy, like avocados and others already on this list, and improve your odds of a long life. Avocados can lower your LDL "bad" cholesterol while raising your HDL "good" levels, and they help your body absorb heart-healthy vitamins like beta-carotene and lycopene.

Next: Tomatoes