Kefir, healthy probiotic beverage with milk kefir grains Marcus Z-pics/iStock via Getty Images Investment Thesis Lifeway Foods (NASDAQ:LWAY) sells kefir, a milk-based drink that is trending thanks to its beneficial properties for intestinal health. And not only that, but the company only generated 2% of its revenue outside the U.S. during full year 2023, so the opportunity for international growth with the support of Danone, which owns 24% of the company, makes Lifeway a very appealing investment idea. Sale ...