This is the first thing your doctor will suggest to treat metabolic syndrome. Cut back on sugar, salt, saturated fat, and processed foods, and eat plenty of vegetables, fruits, and whole grains. Get more exercise. If you smoke, talk to your doctor about quitting. All of these habits can help you lower your blood sugar, blood pressure, and triglycerides, as well as raise your good cholesterol and trim your waistline -- the five things that add up to metabolic syndrome.