Consumables are items which disappear after use. These include food, water, medical supplies and tactical consumables. Many are used simply by entering the gear menu, right-clicking on the desired item, and selecting the 'use' option.
There are various food types available in DayZ. These replenish the hunger meter and increase the players blood volume by a varying amounts. All food types now have a diminishing effect so the more you try and eat at once, the less blood you will get in return.
Drinks quench the thirst of a player.
Water has a risk of carrying disease, and should be boiled before consuming.
Provides a cure to whatever Status Effect the player is suffering from.