Hunger show how hungry you are on a scale from 0 Starving to 100 Satiated
Your Hunger value can be increased by eating food.
It depletes slowly, 1 point every *10 seconds.
You will get a warning symbol above your head when it reaches 20, and if it goes down to 0 you will take 2 damage per second.
Hunger, same like Thirst, does not deplete in Global Map view.
When you revive it is going to be fully replenished.