It can take six hours for the small intestine to do its job. The nutrients are sucked from the inner surface of the small ...

The so-called small intestine is about 22 feet long on average. That's over three times the size of LeBron James. The small intestine is also super thin, just one and 1/2 to two inches around ...

Guido Hooiveld’s proof-of-concept study, examining how the small-intestine microbiota ... are taken from just one end of the intestinal pipe and only tell part of the story.