Flora Super 8 Plus Probiotic (Formerly Udo's Choice Super 8 Plus Probiotic) - Contains not less than 25 Billion Viable Cells in a Vegetarian Capsule. While most people assume they have a healthy intestinal tract, lifestyle and environmental factors can compromise the digestive system. This allows undesirable bacteria to take hold and cause problems. Such factors may include poor eating habits, chlorinated drinking water, stress, the use of antibiotics in food production and medical treatments, and a number of other factors, including health problems and simply aging, which can greatly reduce the number of friendly bacteria in the body.