My doctor recommended it and it is the only dairy I eat. They have just come out with a fat-free version, which is easier for me and is less sweet. I usually have the vanilla with a few squished blueberries for extra flavor. As long as I start my day with activa yogurt, I am stable. If I skip it one day, then I go back in the cycle of D then C. It takes about a week for you to really see results.