 By January 2004, extremely low-gluten Church-approved hosts had become available in the United States, Italy and Australia.As of July 2017, the Vatican still outlawed the use of gluten-free bread for Holy Communion.The Jewish festival of Pesach (Passover) may present problems with its obligation to eat matzo, which is unleavened bread made in a strictly controlled manner from wheat, barley, spelt, oats, or rye.