<<Disclaimer: Verify this information before applying it to your situation.>> >my hair was thinning....I am also curious if anyone knows the cause< Kathy, Alopecea, hair loss, is a hereditary autoimmune disease associated with celiac disease. In those who are genetically predisposed, it can be triggered by a major stressful event such as an illness, birth of a child, surgery, a viral infection or perhaps even cycling(?). There are even a few documented cases of people with alopecea who regrew hair after going on the gluten free (GF) diet which is required for celiacs. Valerie in Tacoma, WA getting better & better on guai & the GF diet