An odd question that I'll ask but I've noticed there's a weight stat, yet nothing so far seem to affect it except working out to loose weight. I wonder if there's actually anything that'll increase it or not.
Gaining weight is the slowest thing, and there are multiple of ways to lose weight in game. BUT, could also be bugged atm. If it is though, we'll be sure to have it fixed in the next update coming in a few weeks by just checking on it.