The breaking down of food into forms the body can use is called digestion.

Here's a breakdown:

* Digestion: The process by which food is broken down into smaller molecules that the body can absorb and use for energy, growth, and repair.

* Mechanical Digestion: The physical breakdown of food into smaller pieces, like chewing with teeth or the churning motion of the stomach.

* Chemical Digestion: The use of enzymes to break down the chemical bonds of food molecules, transforming them into simpler substances.

Let me know if you'd like more details about the digestive process!