So, I think I'm getting a handle on how food from here works, with the Tingling Mouth, Burning Mouth, Mouth of Fire stuff, but I wouldn't take it as a given. I only tried two types of food, and I ran out of hunger at the same time as I blew out all energy of the effects, so there's definitely general investigation to do still. Haven't tried multi-using anything, either.
Edit: It looks like once you get the message:
The inside of your mouth has gone numb and your digestive tract has finally given up under the assault of spice.
You lose all energy of Mouth of Fire, and then further eating the same day just keeps giving that message.