Sir; DairyUK would like to signal its opposition to a single traffic light system for labelling food products. Milk, cheese and other dairy products are sources of high quality protein and micronutrients. We support clear labelling but are opposed to any overly simplistic system that might lead to nutritionally valuable products being labelled with a red light. Such a system might conversely result in some foods of limited nutritional usefulness not carrying a red light. We agree that there are issues in terms of people’s diet and health, and it is DairyUK’s policy to maintain a dialogue with government.