If you are looking at the traffic light system then you are going nowhere since it is useless and judgmental. Look at a wrapped loaf of bread and you may notice that according to the traffic light label there is about 2% of sugar in it. I just went to the kitchen and looked at a Hovis soft white and the traffic light label says 1.7g of sugar and coloured green. The better label elsewhere says there is 45g of carbohydrate per 100g.
Since all of those carbohydrates can be converted to glucose in your bloodstream, which label do you believe.
They are just as bad where fat is concerned. A few grammes of fat and they colour it red. How dare they?
The traffic light label comes from the same people as the Healthy Eating Guide. Nudge nudge, wink wink, you know what I mean?