<<Disclaimer: Verify this information before applying it to your situation.>> Right, the neuropathy is a symptom of diabetes. HOWEVER, people with really bad celiac disease over a period of many years have almost every imaginable symptom at one time or another. My peripheral neuropathy faded away after about two months on the gluten free diet. Because of my symptoms my doctor was just sure I was diabetic. She kept testing me until it was obvious she would have to give up and admit that diabetes was NOT one of my problems. Of course Gus should let himself be tested for diabetes, but a new look at the contents labels on all the foods he habitually eats might be helpful, also. Patty (San Francisco)