You need to watch what you eat when you have COPD. Is it true?

A person with COPD can burn up to 10 times more calories just trying to breathe, compared with a person without COPD. If one is overweight, one's heart and lungs have to work even harder. If one is underweight, one may be more likely to get health complications from illnesses. So, it is important to maintain a healthy weight. One should have a healthy balanced diet as adviced by the doctor or health care professional.