Similar trick with "no sugar added" in juices, but you can take grape or apple juice, evaporate a lot of the water till it forms a syrup, then add that syrup to juices and still be able to sell the result as "100% pure fruit juice, no sugar added".
No, adding concentrated juice definitely violates "no added sugar" labelling standards, at least as far as the FDA and Health Canada are concerned for sure. I assume in Europe as well.
Some juices are just naturally very high in sugar.
