Fermented milk (Elben, Kefir, etc) is pretty popular here and I've been reading about all of the benefits that it offers, probiotics, etc. I was wondering if anyone gives it to their LOs or might have some information about it. Would it work as a substitute for giving normal cow's milk or would it work more along the lines of giving LOs yoghurt ?? Is it ok to give under the 1 year mark?? Thanks in advance!