DayZ field wiki · Survive
Energy
Calories are a timer
Short answer
Food is time. Sprinting is a tax. The stomach has its own page.
Also: calories · hunger
How it works
Energy drops. You slow, you shake, you get stupid. Exact numbers stay empty.
What to do
Eat before a town. Fruit is a coast gift. See food-cooking.
Don't
Don't hoard ten steaks until they rot in the bag.