Doreen, there has been mention of a brand here called "Harvey Fresh" which claims to be 100% lactose-Free Yoghurt and is 3.5g per 100g which is about half what full cream milk is here (4%)

I understand they explain theirs is lower carb because they add something called a lactase enzyme to further convert the remaining lactose into simpler sugars which in turn lowers the carb count.

Now this might be true - if the lactose is all digested and if the glucose part is all the converted to lactic acid (2 big ifs) then that would explain their result of about half the normal carb count. Mind you if they have had it independently tested (another if ) who are we to argue. Of course that gets you down to how much faith you can have in the information on any label, but that is another subject again

Have you heard of additional "lactase enzymes" being used in this way?

Malcolm