Minecraft wiki entry for Hunger_management, associated text: Foods can be divided into five tiers, according to how much saturation they restore per hunger unit. They are known as nourishment values, and the saturation one gets from any food is defined as nourishment times hunger. Knowing this, there are roughly two ways to approach the issue of hunger and saturation. Players can either try to eat efficiently, meaning using as little food items as possible, or try to eat expediently, meaning to stave off hunger as fast as they can.