Options for every rules does not make great games. Great games have coherent and interresting rules.
Eating food to heal is not coherent nor interresting in a DnD setting. On top of that, it makes no sense.
Everyone doesn't have to be a better healer than healer and food doesn't have to be better items to heal than items to heal.
There are potions, there are spells, there are clerics and druids, scrolls... and there are ritual spells in DnD that could help you if you don't have enough potions.
