We are 100% addicted to kefir in this household. If we miss drinking it for some reason, the whole rest of the day feels “off.” Dairy or milk kefir is a delicious probiotic, a cultured milk drink that has over 2,000 years of history. The story of Kefir takes us back to the Caucasus Mountains, located between Europe and Asia. Shepherds there noticed that milk carried for long periods of time in leather pouches or animal hides would sometimes ferment to create an effervescent beverage. …