Leaky gut by definition is intestinal permeability. Mayo, Harvard, John Hopkins and Cleveland medical institutions all state this. That means the lining of the intestines has broken down allowing bacteria and toxins to leak through the intestinal wall. So it’s real. What is not understood by these medical institutions is how or if this is the cause of diseases.
I agree Dr. Gundry is a scam in terms of trying to sell his products. Foods he believes should be omitted also baffles me. One example is avocados that are highly nutritious. There are others like him who have these 30 minute videos and in the end talk about why you should buy their products. And in my opinion there’s nothing unique about their products that you couldn’t find elsewhere.