Zero risk is impossible in any case, maybe except in specific allergen free controlled chains. It is therefore of great importance to have sufficient risk communication on allergens in food. This is a shared responsibility of all parties involved: government and food authorities, (medical) care workers, patient alliances, food producers and patients themselves.
Especially regarding allergen cross contamination in food the lack of guidance on how to deal with that, risk communication is key. The current use of disclaimers such as the “may contain”-phrase on food gives virtually no information whatsoever and so limits the free choice of products for patients and their peers, friends and family. (see labeling)