"Hunger" is a Character Stat in DayZ Standalone (DZSA).
Refers to how Hungry your character is
This is determined by the Energy Stat
When energy goes below 600, you become Hungry
When energy goes below 300, you become Very Hungry
When energy drops below 100, you become Starving and begin to lose Health and Blood
If your energy level is above 3,000 and your Water level is above 3,500 you start regenerating Blood andHealth
Eat Food to recover some energy.