HelenaWojtczak:
In the UK some pots say "natural" and others say "live", so I suspect it's not the same thing? What do I know? I only eat the stuff for the bacteria!
then it will be "z żywymi kulturami bakteryjnymi" or "żywe kultury bakterii" or something like that (look for the words "żywe" = live, living and "bakterie" somewhere, in some grammatical form).
Unfortunatelly, I don't drink yoghurt (they use gelatin too often), but I'm almost sure that "naturalny" in Poland means, and no more no less, that it's not fruit taste.
And that Danone "Jogurt naturalny" you can see on a picture above is with powdered milk, yuck.