Food Machine

The food we eat turns into us. But the process is far from simple. Digestion begins in the mouth, as teeth tear and grind up food. The stomach takes over, with a chemical attack that breaks down more of the food stuffs. The food is here for 2 to 6 hours, churning away without our noticing. Meanwhile, the kidneys are keeping a check on the water in our bodies. Each contains a million tiny filters, and all the blood in the body passes through them every 5 minutes. As the food passes from the stomach to the small intestine, bile attacks the fats and other ingredients that have survived so far. Microscopic cilia start to absorb the nutrients, and they are carried to the body's chemical factory, the liver to be processed into the substances we need for energy or to build up our bodies.