<<Disclaimer: Verify this information before applying it to your situation.>> I have on GF diet since April, and I feel just fine, never felt better. My blood tests were negative and I am supposed to do a biopsy in September/October . Now I'm getting a little uncertain about it, because all my symptoms are gone, even those I didn't know had a connection to CD. As a matter of fact I have never felt so healthy as I do now. And doing a gluten challenge really frightens me because I react to very small amounts gluten and I get so sick that I am not able to work. My question is how long do you need to "eat gluten" and what amounts are we talking about before a biopsy? Katriina [log in to unmask] "Living a wonderful GF life in Stockholm, Sweden"