In the ongoing hustle and bustle of our intestines,where bacteria and food regularly intermingle, there is another substance that, or to the surprise of researchers,has been found to rapidly change: the gel that lines the intestine. A new Caltech study is the first to demonstrate how the structure of this intestine gel, or mucus, and can change in the presence of certain substances,such as bacteria and polymers—a class of long-chained molecules that includes dietary fiber.
Source: phys.org