What type of protein molecules does animals use to digest food?

Animals primarily use enzymes, which are specialized protein molecules, to digest food. These digestive enzymes, such as amylases, proteases, and lipases, break down complex macromolecules like carbohydrates, proteins, and fats into smaller, absorbable units. Each type of enzyme is specific to the type of nutrient it targets, facilitating efficient digestion and nutrient absorption in the digestive system.