It's the iron fortified flour and then the people are like OMG I have celiac and what not. There's a reason breast milk and milk in general contains lactoferrin; guess what, they also remove it from most milk that is in supermarkets.
The burden of proof for a coeliac disease diagnosis is quite high: a biopsy from an endoscopy that shows classic signs of damaged villi (from autoimmune mechanisms), or a blood test with extremely high tTG levels and a family history of the disease.