Complete hunger display

Vanilla Minecraft apparently has a secret invisible hidden extra hunger bar, which is responsible for the discrepancy between the state of the visible hunger bar and how long food actually lasts. This has led to confusion, speculation, superstition, and squabbling among players, as people come up with different guesses about why hunger behaves the way it does.

Concept
Display both damn hunger bars so the player can tell what the hell is happening and why.