Instructed patient Eat a heart-healthy diet Eating a healthy diet can reduce your risk of heart disease. A diet rich in fruits, vegetables and whole grains can help protect your heart. Beans, other low-fat sources of protein and certain types of fish also can reduce your risk of heart disease. Stop your activity if you feel short of breath, dizzy, or have any pain in your chest. Do not do any activity or exercise that causes pulling or pain across your chest, (such as using a rowing machine, twisting, or lifting weights.