Digestion and breathing may seem unrelated, but they are intimately connected. Here's how they work together to support health.

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

The metabolic impact of food temperature Beyond direct digestive effects, food temperature may influence metabolism—the process by which your body converts food into energy.

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.

As food travels through a person’s digestive system, the body uses enzymes to break it down into smaller molecules. This process is chemical digestion.

It takes the body several hours to fully break down and absorb protein. How long it stays in your system varies by the protein source. Learn more about this process.

From skipping meals to consuming too much caffeine and alcohol, here are a few habits that can affect the digestive system.

The digestive system does far more than simply process food. This complex network serves as the foundation for overall health, influencing everything from immune function and brain health to ...

Digestion time between vegetarians and meat-eaters depends on the food eaten. Fiber in vegetables in much more easily digested than protein in meat.