Non-celiac gluten sensitivity yet well understood. It was hypothesized that gluten, as occurs in celiac disease, is the cause of NCGS. Besides gluten, other components in wheat, rye, barley, and their derivatives, including amylasetrypsin inhibitors (ATIs) and FODMAPs, may cause symptoms. Some people may have a reaction to other proteins present in gluten-containing cereals that are able to inhibit amylase and trypsin (-α-amylase/trypsin inhibitors [ATIs]). ATIs are part of the plant's natural defense against insects and may cause toll-like receptor 4 (TLR4)-mediated intestinal inflammation in humans. These TLR4-stimulating activities of ATIs are limited to gluten-containing cereals (wheat, rye, barley, and derivatives) and may
Oat sensitivity attempting to achieve normal intestinal morphology is a risk factor for refractory disease and cancer. Oat sensitivity Oat sensitivity represents a sensitivity to the proteins found in oats, "Avena sativa". Sensitivity to oats can manifest as a result of allergy to oat seed storage proteins either inhaled or ingested. A more complex condition affects individuals who have gluten-sensitive enteropathy in which there is also a response to avenin, the glutinous protein in oats similar to the gluten within wheat. Sensitivity to oat foods can also result from their frequent contamination by wheat, barley, or rye particles. Studies on farmers with