I'm not sure what this lady is trying to get at...
Celiac patients have almost twice the normal risk of cancer, and one-third of them suffer from another autoimmune disease, like Type 1 diabetes, lupus, or multiple sclerosis. (They may also be susceptible to schizophrenia.) As far as we know, the only way for people with celiac to stave off these dangers is to eliminate gluten from their diets—entirely and without exception—for the rest of their lives.
...But diagnosed celiacs only account for a small fraction of the bloated and still-expanding market for gluten-free products. (In total, the disease affects just 0.75 percent of the population.)
I am getting the impression she just dug herself in. >.>
And if I could find the leaflet in the book mentioned, most go undiagnosed for years and it's hereditary.