Gluten is a naturally occurring protein mixture found in many cereals. For people with gluten intolerance, consumption can have harmful health effects. Information about the absence or reduced presence of gluten in food is regulated by Implementing Regulation (EU) No 828/2014. Gluten and cereals containing gluten are also mandatory declaration substances according to Annex II of Regulation (EC) No 1169/2011 (allergen labeling).