In the two decades Andy Carnovale has lived with celiac disease, gluten-free pastas, breads and baked goods have become less crumbly, less dry and more flavourful. But they haven’t become any cheaper.
Mr. Carnovale, a retired school vice-principal in Courtice, east of Toronto, says he spends an extra $3,000 a year on gluten-free versions of regular household staples: “You gotta get used to paying three times or five times more than others do.”


