Interesting take,....I've read it six or eight times, but I don't 'sense' that he doesn't believe in leaky gut. But I'm not as sharp as I used to be! He does talk about candida 'escaping it's NORMAL peramiters',...that sounded to me like 'leaky gut',...and he says when 'it' happens,...it's what he and they call, "Systemic".