Question: are there probiotics in kefir?
Answer: Kefir Is a More Powerful Probiotic Than Yogurt Yogurt is the best known probiotic food in the Western diet, but kefir is actually a much more potent source. Kefir grains contain up to 61 strains of bacteria and yeasts, making them a very rich and diverse probiotic source, though diversity may vary ( 7 ).