i) replactement of probiotics(?) - just get a very good quality probiotic, one that contains live lactic bacteria to be sure of the bacteria count with multi-strains (especially colonizing ones)! Need to take regularly to keep the numbers up and healthy
ii) I dont think that cow's milk, per se, is bad or contains growth hormones. I believe it is how the cow was bred and what it was fed with which then gets into the milk and given to us. Like GEM food? Just need to make sure that the milk you are taking comes from a cow that has not been given growth hormone, etc. Then again, how do you identify it without appropriate labeling - too many unknowns here!