If you have allergies, you have leaky gut. Probiotics, bitters, inulin, FOS related foods, glutamine are examples of supplements you can take to cure leaky gut.
How am I able to read the symptoms thomas? Well I don’t get an allergic reaction to all foods on allowed foods list, but if/when I cheat, I do get a reaction. There was a time when I wasn’t allergic to anything, and then I became allergic to many foods. You just gotta be in tune with your body and if you feel any difference after eating something you haven’t had in awhile, then that should be avoided.