The mucosal system is a very important part of the human immune system. Not many people think of mucus as being protective, but it is the main interface between the human body and the outside world. The mucosal system contains 150 times more surface area than skin, which makes it one of the most important immune barriers. The health of the mucosa determines how the body interacts with antigens; therefore, the integrity of the intestinal mucosa can dictate overall immune function.Please read Disclaimer.