Any way you look at it, you’re going to gain weight when you quit smoking...I am glad I quit but I get more tired running and have gained 15 lbs. my daughter in law also quit June 22nd, and she is super skinny at 27 years old, and even she gained 15 lbs. I run 2 or 3 miles every day ... and I’m not eating any more than normally? So why the weight gain? I’m 5’ 4” and at 149 from 130 lbs...it’s so so uncomfortable @# actually I’ve almost gained 20 lbs in 100 days!
I gained about 7 pounds when I quit (two years ago)... Try to get some snacks that are low calorie like carrot or celery sticks... Chex Mix is pretty low in calories... Our metabolisms do slow down, but its’ bettern than killing ourselves slowly with butts!