It is important to keep a healthy balance of beneficial bacteria in your digestive tract. An imbalance can cause health problems and affect the working of the digestive system. If you suffer from digestive problems or just want to keep your digestive system functioning at optimum efficiency, consider a probiotic supplement. Taking a good probiotic supplement should be on your to do list on a regular basis. ThreeLac is a great dietary supplement for a digestive system. ThreeLac is a daily dietary supplement that works naturally to help build and maintain a healthy, balanced digestive system, prevent the overgrowth of harmful bacteria and improve food digestion.