What causes weight gain after quitting?


When nicotine, a chemical in cigarette smoke, leaves your body, you may experience:
Short-term weight gain. The nicotine kept your body weight low, and when you quit smoking, your body returns to the weight it would have been had you never smoked.

You might gain 3 to 5 pounds due to water retention during the first week after quitting.

A need for fewer calories. After you stop smoking, you may use fewer calories than when you were smoking.

####