The unleavened bread used to celebrate the holy communion during Catholic masses can be made with genetically modified organisms, the Vatican said Saturday, but they cannot be entirely gluten-free.
Low-gluten bread is allowed but there must be enough protein in the wheat to make it without additives.
Cardinal Robert Sarah of the Vatican’s Congregation for Divine Worship and the Discipline of the Sacraments said the guidance was needed now that Eucharistic bread and wine can be found in supermarkets and “even over the internet”.
In a letter issued last month, Sarah also reminded bishops that the bread should be made by people “distinguished by their integrity” – and that adding fruit or sugar was a “grave abuse”.
“It is altogether forbidden to use wine of doubtful authenticity or provenance,” he added.
But for people who cannot tolerate wine the use of mustum, or must, a thick non-fermented grape juice, is considered “valid matter” for the sacrament, which Catholics believe turns the bread and wine into the body and blood of Christ.
Through the Eucharistic celebration Christians remember Christ’s sacrifice of himself on the cross. There are 1.2 billion Catholics in the world.
Agence France-Presse contributed to this report
