Digestion is the process of breaking large, insoluble food molecules into smaller molecules for absorption into the bloodstream. This process involves the use of numerous digestive fluids and enzymes including saliva, mucus, bile, and hydrochloric acid.
The human body has four primary stages of food digestion that include
- It makes its way through the stomach into the small intestine, where it is digested, after the intake of food by the mouth.
- In the small intestine the nutrients from the digested food are absorbed into the bloodstream through small pores.
- The leftover undigested food is sent to the large intestine where the body reabsorbs any unprocessed water or nutrients.
The remaining product of waste food is carried out of the body in terms of stools.