Good news: the Food Standards Agency has announced that an extended allergen labelling system is to be introduced in the UK by mid December. It will apply to both pre-packed and non pre-packed (loose) foods, i.e. both grocery and restaurant offerings. Whether the allergens are included or added to the foods they must be referenced on the labelling.
We already have allergen labelling on most pre-packed foods but this will be extended to include these 14 allergens.