In practice, we found in the research we did with consumers that consumers told us they understood already the numerical information they were receiving on calories. It was the numerical information on fats and sugars that they found more difficult to interpret, but they knew if something was high in fat or high in sugar it would be bound to have lots of calories in it.
Our consumer research didn't suggest that a traffic light colour code would be necessarily helpful in the area of calories, but it has to be said that when we recommended those four core principles, we also said that businesses might want to provide additional information on, for instance, calories. We have found in practice that most of the businesses that have adopted the four core principles have decided in addition to provide information on calories. In practice, that is happening.