Starvation

Starvation is a derived statistic in Fallout: New Vegas in Hardcore mode.

Gameplay
Starvation is measured as FOD under the Hit points (HP) bar. Starvation occurs if the Courier does not eat food after a long enough period of time. It accumulates slowly at all times, and primarily affects Strength, though Perception and Charisma also suffer at higher starvation levels. It takes five days for the Courier to starve without eating anything. Most types of food will reduce starvation by some amount, though certain foods are more effective than others.