Intestinal hyperpermeability occurs when the junctions that make up the GI tract are inflamed and become more permeable, allowing food, bacteria, parasites, and/or toxins to pass through the compromised intestinal mucosa into the bloodstream. Some factors that can lead to impaired gut permeability are antibiotic and medication use, poor or repetitive dietary choices, stress and other medical conditions. Both stool and food sensitivity kits can be helpful tools to assess the severity of your gut permeability, and nutrition and supplements can be very helpful in repairing the gut lining and intestinal tight junctions.