Leaky guy is a little controversial because most conventional gastroenterologists don't really accept it as a true disease or a true syndrome as opposed to a lot of alternative physicians believe that there is defiantly some disease that comes from what is called leaky gut. So what it is, is basically intestinal permeability.
There is a transfer of toxins of undigested food particles, fats or proteins that can cross from the intestine into the blood stream, and thereby causing kind of a systemic inflammatory response. So there have been people, discussions on whether some of these toxins may progress to inflammatory diseases such as Celiac disease, or Crohn's disease, or even rheumatoid arthritis or generalized joint pain. So the jury's still out whether leaky gut syndrome actually exists or not or if there is any disease that relates to it. Now our colons and our digestive tract, there is intestinal permeability and there is free flowing of nutrients and electrolytes that do cross from our digestive tract into our blood, and that's how we absorb our nutrients.
Now whether there's pathology based on that is still controversial but the most important thing is to understand that there is permeability and that there is some transfer but whether there is disease state from it is still debatable.