Didn't know Celiac was a possibility

[Kiwi Stoker]

It also depends on what blood test they used. My SIL was declared celiac due to a positive blood test and because her mum and aunt are. However she didn't have a colonoscopy.

7 years later while living in Ireland and craving to be able to eat pizza and pasta on a trip to Italy she had the more advanced blood test (Ireland is one the genetic "homes" of this condition) and it turned out she wasn't! The first test apaarently returns a lot of false positives. Apparently a colonoscopy is the only REAL way to confirm it 100%.

Let's just say she was really peeved to been eating gluten free for seven years but pleased she could eat real Italian pizza!