It should be possible to cure all peaceful mobs with their favorite food.

Mobs like wolves, cats, horses, donkeys, mules, llamas, camels, nautiluses, sniffer and iron golems can be healed, but what about the rest of the mobs? I know there's the healing potion, but how about an easier alternative, instead of going to another dangerous dimension just to heal your favorite mob, why not feed him his favorite food, which can be easily found throughout the Overworld? Even mobs that can be tamed, such as parrots, foxes, ocelots, and happy ghasts, cannot be restored to health by feeding them, the copper golem, for example, could crack as it took damage and would be repaired with copper bars; the rabbit should have more health now that it has increased in size, this would make each food item more useful and reduce the chances of the player losing their favorite or rare mob.