Much of the food you eat is absorbed by your digestive system, which includes your stomach and your intestines.

Digestion varies depending on what we eat. Knowing the average times of 10 common foods helps you plan meals, choose what to ...

The brown color of poop comes from the bile that is added by the liver to your bowl of cereal as it makes its way through the small intestine. The bile is changed by bacteria from green to brown.

Fat metabolism is a fascinating process and essential for human survival. It involves the digestion, absorption, transportation and utilization of lipids as a source of energy or as an energy reserve.