How does the food,you eat used by the body

When you eat food—like rice,meat,eggs—they are not in a form that the body can digest. Food and drink must be changed into simpler substances before they can be absorbed into the blood and carried to cells throughout the body. Digestion is the process by which food and drink are broken down into their smallest parts so the body can use them to build and nourish cells and to provide energy. Food will be able to act as a form as nourishment as soon as it has been digested and transported into the body. It will then be transported to all parts of the body, and at the same time providing oxygen for the body, as well as energy. Some of the excessive food will be then stored as fats.