Enzymes in the intestines and liver turn beta-carotene into vitamin A, which is crucial for vision, a healthy immune system and healthy skin.

Only a relatively small amount of ethanol is metabolized in the intestines, where probiotics do their work.

When a person swallows a tamoxifen pill, it passes through their stomach and into their intestines, where it is absorbed into the bloodstream.

Scientists are intensifying efforts to reduce inflammation-causing cells in the intestines and improve treatment options for the nearly 7 million people affected worldwide.

At age 15, Murray was hospitalized for more than two months after his intestines twisted and he required an emergency resection that resulted in post-operative internal bleeding.