Hi! I've been gluten free for 12 years, I to had a negative biopsy and blood work, but was diagnosed by a chiropractor who does applied kinesiology. I don't tell many people about that because most people do not believe in that kind of doctor. Gluten is in so much stuff you really have to read labels and some companies are getting very good at putting allergy information on their boxes. For example Rice Krispies are not gluten free because of the barley malt. The best thing to do if you are not sure about a product is call the company. Most of them are happy to give you that information. If anyone would like to e-mail me about any product I would be happy to reply. But remember reading labels is very very important. Cheryl