Do doctors think it's harder to lose weight after you quit smoking?

It can be ...: Weight gain after quitting smoking usually results from two things, both of which can be avoided. One is the result of not breaking the hand to mouth habit of smoking, but replacing the cigarette with food. The second is the result of the body's metabolism slowing down as much as 10% upon removal of the nicotine stimulation. So reducing your calorie intake could help avoid gaining weight.

Quit smoking weight: Quitting smoking cold turkey causes in an increase in your body's Insulin levels that peaks at 3 months and is over by 6 months tobacco free. However an increased Insulin level means you are always hungry and struggling to keep a normal blood sugar, thus people gain weight. In addition, higher Insulin levels encourage fat storage in your body. For some people, weaning off tobacco prevents this.