More about Bio-K+ With over 20 years obsessively learning about, researching and ensuring the viability of our three unique probiotic strains, Bio-K+ probiotics are trained to thrive inside, providing a minimum of 50 billion live & active probiotic cultures. Bio-K+’s drinkable probiotics ensure bacterial survival to the intestines, where it counts, promoting intestinal & immune health. Bio-K+’s efficacy has been proven effective in multiple trials that included over 76,000 patients and has been published in prestigious journals such as the American Journal of Gastroenterology (visit biokplus.com for more info). Chosen by more than 200 hospitals in North America.