Scientists can have an inside look at the digestive system by studying very special cows. Follow a University of Idaho scientist as he explains how cows digest their food by opening a unique portal ...

What goes on inside your digestive system? Your body needs food to stay healthy, but how does it turn food into the nutrients you need? Dive inside the Digestive System and find out.

The National Academies of Sciences, Engineering, and Medicine are private, nonprofit institutions that provide expert advice on some of the most pressing challenges facing the nation and world. Our ...