Thanks for your input #89866 :) And yes I am in Poland.
I know how they do those concentrates, idiotic but sadly true.
Basically right now I am searching for a step forward in my health not a perfect solution. So that's why I am considering those and similar juices (this one have english label on it). It has on label: 100% juice, but they are allowed to add some spices and a bit of water, and when juice is too dense more water. Other option would be frozen vegetable mix for pan cooking or steaming. What do you thing? Is that “ok” substitute for fresh vegetables?