<<Disclaimer: Verify this information before applying it to your situation.>> After being gluten free for two months now my specialist wants me to do a gluten challenge for a endoscopy. The problem is that I don't really know how long I should be eating gluten before he does the test. I was going to start back on gluten right away but the test isn't until September seventh and that seems to be too long to be eating gluten. Can anyone tell me how long? Thank you in advance Irene Young South River,Ont.Can