To lower your risk for many types of cancer as well as other serious disease aim to build your diet around a variety of antioxidant-rich fruit and vegetables, nuts, beans, whole grains, and healthy fats. At the same time, try to limit the amount of processed and fried foods, unhealthy fats, sugars and refined carbs you consume. Diets high in fruit may lower the risk of stomach and lung cancer. Eating vegetables containing carotenoids, such as carrots, Brussels sprouts, and squash, may reduce the risk of lung, mouth, pharynx, and larynx cancers. Diets high in non-starchy vegetables, such as broccoli, spinach, and beans, may help protect against stomach and esophageal cancer. Eating oranges, berries, peas, bell peppers, dark leafy greens and other foods high in vitamin C may also protect against esophageal cancer. Foods high in lycopene, such as tomatoes, guava, and watermelon, may lower the risk of prostate cancer. A healthy diet can help you prevent or fight cancer.