12- Keratosis Pilaris
This syndrome is also known as chicken skin and it manifests itself on the back of your arms. This syndrome is caused due to Vitamin D deficiency which is linked to deficiency of fatty acids. This deficiency in fatty acids in the body is normally due to their malabsorption from the digestive tract, which is often due to damage to the guts by gluten. Although many other syndromes can be caused by Vitamin D deficiency and fatty acids deficiency, but keratosis pilaris is the first to manifest itself in cases of gluten intolerance.