Foods that usually containing live active cultures include buttermilk, yogurt, sauerkraut and miso. Cultured cottage cheese, kimchi, kombucha and kefir also contain live cultures.
Yogurt is the most common culture-containing food available. As long as the container contains the words "live" or "active," consumers know they are receiving a healthy dose of probiotics, live bacteria that helps the digestive system. Kefir is also gaining in popularity because of its probiotic characteristics. Kefir is similar to a yogurt, but it is thinner and often consumed as a drink that contains a different set of probiotics than yogurt.