How does the energy from food get into the body?

Energy from food enters the body through the digestive system. When food is consumed, it is broken down into smaller molecules, primarily glucose, fatty acids, and amino acids, during digestion. These molecules are then absorbed into the bloodstream through the walls of the intestines and transported to cells throughout the body, where they are used to produce energy in the form of ATP (adenosine triphosphate) for various bodily functions.