Cigarettes do not contain calories. But while they do not have calories, they also come with harmful chemicals and a lot of tar. Most would associate smoking with losing weight. Indeed, it aids the body in speeding up metabolism. As a result, the body burns calories faster than when one is not smoking. Smoking also suppresses one’s appetite. When a person stops smoking, he will find that food tastes better. At this time, there is a hard-to-resist craving for sugary foods. Also, when a person stops smoking, there is a slow down of the metabolism process. And so, while the craving for food gets high when one stops smoking, the metabolism goes slow. This often results in an uncontrolled weight gain.