After the first town i would say there should be a easier way to get XP maybe tied to the towns weight or national, a "nuke" option for the characters that is a special event maybe tied to the donuts also or something like that as a little experiment wich can cost a lot but its garanteed like 100 pounds per use, and for last I wouold say better weight gain loss so it doesnt take like 100 days to just get down 50 pounds