Last week I tried Kefir (fermented milk similar to yoghurt) for the first time. The one I bought is an organic product produced on a family farm. In addition to 3 specific LAB strains, it includes "lactic ferment" which contains various beneficial bacteria also containing bactericin. I have never heard of "bactericin". Has anyone tried it or know anything about it? I have been taking 3 tbsp of this kefir daily for a week and despite my inability to tolerate most foods and supplements, I am doing fine with it so far.