<qa>  What is the first study to look at the use of diet and exercise in treating heart failure patientsThis study will be the first research study to look at the use of diet and exercise in treating heart failure patients who are overweight obese with the metabolic syndrome. The study will last 6 months. From this study we hope to learn whether diet and exercise is helpful in treating heart failure patients who are overweight. Specifically, the study will look at the short term effects on cardiac risk factors blood pressure, cholesterol, blood sugar, heart failure symptoms, and exercise capacity. 