Our most popular product line, Lifeway Lowfat Kefir is up to 99% lactose-free, gluten-free, and made with all natural, non-GMO ingredients. Kefir is a tart and tangy cultured dairy drink packed with protein, calcium, and 12 live and active probiotic cultures. Lifeway’s Blueberry Lowfat Kefir is lightly sweetened with 1g of added cane sugar per ounce.