In 1994 I was diagnosed with celiac disease, which led me to create Celiac.com in 1995. I created this site for a single purpose: To help as many people as possible with celiac disease get diagnosed so they can begin to live happy, healthy gluten-free lives. Celiac.com was the first site on the Internet dedicated solely to celiac disease. In 1998 I created The Gluten-Free Mall, Your Special Diet Superstore!, and I am the co-author of the book Cereal Killers, and founder and publisher of Journal of Gluten Sensitivity.
The following is a list of causes of flattened villi which was published in a book titled Coeliac Disease by W. T. Cooke and G. K. Holmes, published by Churchill Livingstone, Medical Division of Longman Group Limited (1984). Celiacs on a gluten-free diet (for a prolonged period) who continue to have flatten villi may be want to look for other causes to their problem. Keep in mind that some of the items listed rarely cause flatened villi, and are usually found in conjunction with Celiac Disease or immuno-deficiencies.