Digestion is a process that converts the material from food into a form that allows absorption and metabolism of nutrients of the food. On average Humans eat 1 to 2.7 kg of food every day. That is about 28,800 kg of food over a lifetime and every bite of your food makes its way through your digestive system. This is one of the most diverse and complicated systems in the human body. The components of the digestive system work in coordination to fulfill only one task, transforming the raw materials of your food into a nutrient that keeps you alive.