Research has proved that leaky gut is one of the most common root causes of autoimmune thyroid conditions. What would you expect if a pipe in your home leaks? Pools of water will be formed. Similarly, a leaky gut results in the entry of substances that have to be removed from the body. This is also linked to gluten sensitivity. Gluten is a component of certain grains such as wheat and barley which can make your digestive system extremely sensitive. This can cause loose stools and stomach aches. Another associated feature is related to the ability of the gut to fight infections. This is linked to the trillions of bacteria which are very essential to process the consumed food.