with COPD if they give you steroids it is going to put a bad hault to loosing weight. I lost 40 lbs by examining what my bad habits were and getting rid of that and not going on a diet. Make different choices in the food you eat and it will change dramaticly. Drink lost of water. Watch your carbs, but don't give them up. At least the good carbs. Also if you don't eat you won't loose. I'll tell you why, your body goes into starvation mode and stores the fat more. You have to eat to loose weight. Eat three meals a day. You need it especially if you are working out.