Kefir is a tangy, probiotic-rich drink made by fermenting cow’s or goat’s milk or water with a culture starter called kefir grains — small clusters of bacteria and yeast that resemble tiny cauliflower ...

Kefir is a probiotic-rich drink made from milk and kefir grains. Benefits of kefir include supporting gut health, strengthening bones, and helping with weight loss. However, kefir may carry some risks ...

Kefir's been quietly bubbling away for centuries (originating from parts of Eastern Europe and Southwest Asia) but only recently started getting the credit it deserves in the Western world as a ...