upgrade the digestion rate for a bit first, then upgrade stomach like 3 times then just spam food for xp and build into happiness, different foods offer more xp, sometimes food with more calories give little xp
Thanks for the reply, was experimenting with capacity and it's pretty good for leveling up, but it's not ideal for cash flow i think. you can get some pretty insane capacity if you really invest though. my current capacity character has like 60k capacity thanks to dumping like 60 levels into it, kinda crazy