11 Kefir Health Benefits & Uses To Maintain Body Health Kefir is all the rage in the natural health community. High in nutrients and probiotics, it is very beneficial for digestion and gut health Kefir is a cultured, fermented milk drink, originally from the mountainous region that divides Asia and Europe. It is similar to yogurt – but a drink, with a sour taste and a slight ‘fizz’. This is due to carbon dioxide – the end product of the fermentation process. The length of the fermentation time