Kefir has many benefits including better digestion of fats, proteins and carbohydrates, and has been known for thousands of years for its anti-aging and immune enhancing properties. Kefir is an ancient cultured food rich in amino acids, enzymes, calcium, magnesium, phosphorus and B vitamins.  An absolute must after antibiotic use because it contains high probiotic properties.  Unlike yogurt, kefir can actually colonize the intestinal tract and is simple and fun to make at home.  There are also claims from Southeast Asia and Canada that milk kefir also reverse signs of aging such as delaying or reversing the growth of grey hair.  Of course with all health supplements, please use with care and do adequate research of your own before using any new products.Thank for living well and healthy!!