Your immune cells, barriers, and signaling molecules are all highly dependent on good nutrition.
But it's time to begin thinking beyond blueberries, vegetables, and chicken broth, and instead to begin delving into more advanced, little-known foods that can support your immune system with great efficacy.
These foods may sound scary, and some of them may be stinky, but they can give your immune system a huge boost that keeps disease, infection, and sickness from taking you down.
Of all the physical barriers between your internal organs and the outside world, your gastrointestinal tract is of primary importance when it comes to your immune system.
The gastrointestinal tract is like an internal skin, but it has about 150 times more surface than your outside skin does. It also contains the largest number of immune cells of your whole body—approximately 60 percent of your entire immune system!
Your gastrointestinal tract comes into contact with the largest amount and number of different molecules and organisms of any organ in your whole body, which makes sense when you consider that the average person ingests more than 25 tons of food over his or her lifetime.