I just made my first batch of yogurt. I used 2 T. of Fage 2% yogurt as my starter, along with my 1% milk. I'm wondering if my new batch now has its own active cultures (are probiotics something else? ) - just 'cuz, or do I have to add something in there? It's really good - I poured off the whey that had separated and it's nice and thick. I had it with some fresh, seasonal local honey this morning and am delighted. But is it really doing anything "good" for me other than I know what's in it and I'm getting a serving of dairy?