Mass is a gameplay mechanic which affects your [[gameplay:concepts:food:hunger]]. Mass is a measurement of how much of your [[gameplay:concepts:food:hunger]] a certain [[gameplay:concepts:food]] will take up. Unlike the majority of measurements in Improbable Island, Mass does not have specific units, meaning that there's a lot of guesswork involved. Mass is only visible to the player in [[places:outpost:building:restaurants]], but Meat and other edible items do still have their own mass values.