Nah weed dosnt make you skinny but it dose REALLY LOWER your ambition which i find i really need to do any weight lifting or exercises but on the munchies thing i get the munchies from hell when i start coming down but ive never gained any wight ive been doin weed for about a year now and ive been 165lbs (respectively) for like 4 yrs now. But i also skip breakfasts and i might have a high or abnormaly high motabolism