Even though certain foods such as dairy and cruciferous vegetables like broccoli can cause COPD symptom flare-ups, there are other healthy options. Try eating fresh, steamed vegetables such as spinach, bell peppers, potatoes, carrots and green beans. Before starting or changing your diet, be sure to discuss it with your doctor. Cutting down on your salt intake can help you reduce excess fluid and bloating. Instead of salt, try herbs and spices such as peppermint, oregano and turmeric, which are all herbs that can help your lungs. When your lungs are breathing more easily, you’ll have improved oxygen levels, helping you feel better overall.