This game is somewhat unbalanced because you can increase your stats as much as you want as long you produce the food, because your stomach is a black hole.
So what happens if we make so you cant eat past your maximum energy bar? Like the character is saying he is not hungry if he reach 10.000 energy and you try to feed him more.
This would make it harder for people who are using bots, to feed their 20 extra characters, because to lose energy they need to work, use stamina, drink water and lose energy.
So this should not effect too much on active player, sure the development of characters will slow down immensely, but if that happens to everyone it is fair.
This will also make a lot more people want do more energy draining work, so they can develop their character, making them more cooperative when it comes to bothersome chores.
People would also think more what stats they want and what food they will eat.
But implanting that now would be pretty bad, sins the top characters will never be beaten and unfair for any newcomer.
But if there is a next world, it would be great