You may understand the respiratory and digestive systems as separate entities but, in many ways, the two are intimately connected. For example, breathing provides oxygen to help your digestive tract ...

The mouth starts the digestion process by breaking food down into a more easily digestible form. It does this through a combination of mechanical and chemical digestion. After people take food in ...

Your gastrointestinal (G.I.) system, the key player in your overall digestive health, is one of the most important systems in your body. It consists of the mouth, esophagus, stomach, small intestine, ...

Your digestive system changes as you age. This may make certain types of foods more difficult to digest, including spicy foods, dairy products, and processed foods. The digestive system slows as we ...

If you have a gastrointestinal disorder such as irritable bowel syndrome or inflammatory bowel disease, or even if you just have a slightly sensitive stomach, you likely know which foods may cause or ...

Anthea Levi is a registered dietitian (RD) and reporter with more than 6 years of experience writing for major health outlets including Health magazine, BuzzFeed, Eat This, Not That!, and Livestrong.