Requires the player to be missing food points equal to or more than the amount restored by the food for it to be consumed, with compatibility for foods which are always edible.

It might sound a bit confusing, so here's an example:
An apple restores 4 food points, so the player has to have 16 or less hunger to eat it.
A golden apple also restores 4 food points, but can be eaten at any hunger amount.