If you are looking for complex protein, then wheat, barley and rye has it in loads and are not Gluten free.

It will be sticking to the walls of the intestine and stand in the way of proper absorption of nutrients in your daily diet. An inflammatory bowel syndrome known. It is sticky and feels like chewing gum and it is stretchy as well. Avoid allergies If you have an old health issue regarding digestive problems, you need to go for gluten free food by checking out the list of gluten free foods available. Gluten free diet has long been prescribed for those suffering from autism, schizophrenia and multiple sclerosis and they feel better without them. If the nutrients do not get absorbed, they can settle in your blood stream and lead to allergic conditions. Gluten free food is much more favored as its inherent stretchiness makes it very hard to digest.

As it remains undigested, you can get lots of problems like bad bacteria in the intestine.

They are also used in flour to make the dough elastic and the sponginess you see in bread, is due to gluten.