Check out this article on how heavy exercise may be hurting your gut lining and thereby contributing to leaky gut. This protective permeable lining, only 1 cell thick, is where nutrient absorption occurs and food sensitivities develop.  If your a heavy exerciser or like to be very active in the heat talk to us about your exercise routine.

http://blog.designsforhealth.com/si-42214/heavy-exercise-induced-intestinal-permeability-new-study-suggests-gut-support-for-athletes