I have beautiful healthy Kefir grains raised in organic whole milk. It is very prolific, healthy and flavourful. $5 to get you started. It has a myriad of health benefits to improve your flora and boost your immune system! 80% of your immune system is in your gut so do yourself a favour and try them out. Infinitely better than any store bought kefir or probiotic you can buy. Thanks very much! :)