That sounds useful. Consumers most likely choose the food they want to eat by type, being able to spot the healthier options within a category sounds like it would help me in the supermarket.

We have a traffic light system, pretty useful. But when all items in a category are bad for you, and you know it, them all having red lights doesn't help much.

I'd certainly try alternatives that are marginally healthier, if that's true generally then it puts some pressure on food industry to move to healthier choices.