Gluten, which is a protein found in wheat and other grains (as well as everything made from them) causes your gut to become more leaky. What do we mean by that?
Every time you eat, your stomach digests the food turning it into a pulp. This pulp moves into your intestines, where the nutrients it contains become absorbed into the bloodstream. What can’t be absorbed moves on towards the rear end.
Now, imagine your gut wall (intestinal wall) is like a brick wall. Nutrients are absorbed through the gaps between the bricks and everything else is kept inside. When you eat gluten containing foods, the gaps between the bricks become larger – that’s what we mean by leaky gut. This actually happens in all people after eating gluten. The gaps widen and then shrink once again. In people with autoimmune conditions the gaps can stay open for a prolonged period, which can fuel inflammation and, consequently, autoimmunity.