Since VII, many accessibility features were introduced for celiacs, like giving out the Cup and recently, low-gluten bread originally for cases when a priest - all of a sudden - develops celiac disease. Low-gluten bread is made from special, low-gluten (but wheaten) flour. They were deemed acceptable by Ratzinger.
But I have a problem with them. Low-gluten bread may be overly processed according to the rules of St. Pius V. Plus, the main supporter of these hosts is Ratzinger, a heresy suspect and attendee of Bohemian Grove.
Is low-gluten bread canonically valid?