Eat healthy fats: All fats are not considered equal. Foods can contain fats that increase good cholesterol, lower bad cholesterol and lessen your heart disease. Unhealthy fats that arteries clog raise your blood cholesterol levels and make you gain weight. Limit trans fats, which are present in prepackaged meals, and margarine, and reduce saturated fats, which are present in butter, dairy products high-fat meats. Eat more foods like salmon, nuts, veggies and seeds rich in healthy fats.