Loottable Datapack not working, some1 help?

Hi, so tried to follow a guide to create a loottable datapack to remove pretty much all vanilla food items from Dungeon/village chests, as it ruins my whole "food not abundan" playstyle, but it's not working, and I have no idea why :/
If some1 could take a look that knows a little and tell me what's wrong or guide me, I would appriciate it a ton! 😮