When the natural balance of good bacteria in your digestive tract is disturbed, your digestive system is open to a variety of issues. When making changes to your diet is not enough, adding a daily probiotic can help keep your digestive system in check. Take charge with Culturelle Digestive Health Extra Strength. Culturelle Digestive Health Extra Strength works naturally with your body to help keep your digestive system in balance*. Each capsule contains 20 billion live active cultures of Lactobacillus rhamnosus GG (LGG), the most clinically studied probiotic strain, plus the prebiotic Inulin.