Nourish Kefir has become increasingly popular recently and this is the perfect pack to get you started on making your own homemade kefir. Kefir is a natural food product made by fermenting milk. It contains strains of beneficial yeast and naturally occurring bacteria which have great health benefits when taken regularly. It can aid digestion, prevent an upset stomach, aid people with lactose intolerance and help those who are after finishing a course of antibiotics. Taking a product like this can help to improve the way our food is digested. This freeze dried kefir is an ideal way to get you started on kefir.