Hi live in Upstate New York, and am near Maple Hill Creamery. They make the only 100% grass fed cow's milk yogurt that I know of. It is absolutely superior to everything I have tried. I don't know where you are, but if you are on the East Coast it's possible to get some. If you are not, I would find a farm that is grass based and buy milk and make yogurt yourself (1 tsp of yogurt with live cultures for every qt of milk you want to turn into yogurt). If you need more instruction, I can give it to you.