There is a correlation by studies between autism and Leaky Gut. There are increased levels of zonulin in patients in autism when compared to controls. Also dysbiosis of bacteria and gut permeability is noted in autistic patients.
Biopsies revealed that duodenal specimens of autistic patients revealed tight junction compartments indicating impaired intestinal barriers.
These autistic patients are had intolerance to dietary protein as gliadin, cow’s milk protein and soy There are many other conditions related to leaky gut as metabolic syndrome, Alzheimer's , and post menopausal females.