It really isn't probiotics in a pill, and our need for that, it is an entirely new way of thinking. God didn't create out bodies for homogenization, freezers, pressure cookers, steel refineries, refrigerators and all we use to change food. Our bodies are made to work with food that hasn't been adjusted by all those things. Plain milk could sour, not rot. Housewives pounded grain. Vegetables fermented. People used to know how to do those things, I've tried to learn and it is HARD. But those foods and our bodies work together, adjusted food isn't made to work with our bodies.
I like my chicken, for instance, cheap, deboned, frozen, tender with fat, and easy to cook. That is not the chicken God designed my body for, it is only a few years of the world that has had that chicken. I just found out that even having the bones and skin taken out and used elsewhere is ruining the chicken for my body==it needed what was in those things they use for something else. It is a bummer.
Every fall I and my husband made up a crock of sauerkraut, we were so proud of our pioneering spirit When we were done we canned it in the pressure cooker to preserve it. By canning it we destroyed all the probiotics and took all the life giving properties of the sauerkraut away.