Gluten is a storage protein found in grains such as wheat, rye, barley, bulgur, and semolina. It is a mixture of glutelin and prolamin (gliadin in wheat). While gluten serves as a plant-based protein source, it also acts as a prebiotic that nourishes bacteria in the body. The wheat germ is rich in minerals and B vitamins, which are essential for brain health. However, in some cases, gluten can become harmful to the body.

• Celiac Disease:A genetically predisposed, immune-mediated disorder characterized by intestinal dysfunction due to the consumption of gluten-containing foods. The only treatment is a lifelong gluten-free diet.
• Gluten Ataxia:A condition triggered by gluten consumption in genetically susceptible individuals via immune-mediated mechanisms. A gluten-free diet can help reverse and prevent the progression of ataxia.
• Dermatitis Herpetiformis:An autoimmune response manifesting as persistent, itchy red skin rashes caused by gluten consumption. A gluten-free diet is effective in reducing symptoms.
• Wheat Allergy:An immune-mediated reaction to wheat proteins, causing symptoms such as swelling in the nose, eyes, and mouth, as well as difficulty breathing. In Type 1 allergies, a gluten-free diet is recommended.
• Non-Celiac Gluten Sensitivity:A condition in which symptoms appear after gluten consumption, despite the absence of an allergic or autoimmune response. A gluten-free diet can help reduce symptoms.
• Leaky Gut Syndrome:In children with autism spectrum disorder, opioid peptides formed from the digestion of gluten and casein may pass through the intestinal membrane into the bloodstream due to leaky gut syndrome. These peptides can then cross the blood-brain barrier and affect neurotransmission, potentially contributing to autism symptoms. Removing gluten from the diet for a certain period has been linked to decreased hyperactivity, improved perception and eye contact, and reduced digestive and immune system issues.

While eliminating gluten from the diet may be necessary in some cases, following a gluten-free diet for an extended period without proper guidance can lead to health problems. A gluten-free diet may result in increased intake of saturated fat and calories, insufficient fiber consumption, and deficiencies in B vitamins, iron, folate, and other micronutrients. Additionally, it may increase the risk of toxic metal exposure. Long-term gluten-free diets are known to negatively alter the balance of bacterial species in the gut. Furthermore, maintaining a gluten-free diet can be financially and psychologically burdensome. Therefore, the gluten issue in individuals with autism should be evaluated comprehensively.