Blueberries: These top the list of fruits and veggies for antioxidants natural ingredients that neutralize certain destructive substances that contribute to heart disease. Blueberries also prevent blood clots and reduce artery inflammation. Close runner-up: Strawberries.
Red wine: Grape skins contain the antioxidant resveratrol, which helps prevent blood clots and the stiffening of heart tissue. In addition, alcohol raises HDL ("good") cholesterol.
Nuts: Almonds, walnuts, macadamias and hazelnuts are high in monounsaturated fat, which lowers LDL ("bad") cholesterol without reducing HDL. They are also a rich source of vitamin E (a powerful antioxidant) and of the amino acid arginine, which helps keep artery walls healthy. Walnuts, in addition, protect against clotting and arrhythmia. But keep nuts to an ounce a day: They're also high in calories.
Avocados: True, they're high in fat, but it's the healthy monounsaturated kind. Chemicals in avocados also inhibit cholesterol absorption and protect against hypertension.
Chocolate: The dark, European kind is rich in nutrients called flavonols, which lower both blood pressure and LDL cholesterol.
Olive oil: As a monounsaturated fat, it's good for your cholesterol numbers. In addition, dressing your salad with a little olive oil or using it to sauté leafy greens will help you absorb the nutrients in those veggies.