Lifeway Foods, Inc., Morton Grove, Ill., used Natural Products Expo West to introduce Lifeway Protein Kefir, a three-SKU line extension to aid muscle recovery after exercise. Other new products included a no sugar-added ProBugs probiotic smoothie for kids, a limited-edition Lowfat Watermelon Kefir for summer, and a new 16oz size of nine standard Lifeway kefir and organic kefir flavors that makes it easy for consumers to change kefir varieties from day to day to suit changing tastes.