input: [Possible roadblock] Weight gain [What you need to know] 
output: You may gain some weight when you stop smoking. Don't try to avoid this by going on a strict diet at the same time. This will make it even harder to stop smoking. You can take steps to lower your chance of gaining weight: By being more active. This will also help you feel better. By using stop-smoking medicines. They can help you get through the worst of your cravings and may help you avoid putting on too much weight. Quitting Smoking: Dealing With Weight Gain