Swanson Probiotic+ Prebiotic Fiber helps support digestive health and promote a healthy microflora. Your digestive system has a huge impact on your overall health. One of the easiest ways to nourish your digestive system is with a probiotic. Probiotics are friendly bacteria that nourish your gut and digestive system. They help promote digestion and support immune system health. Prebiotics are food for the probiotics to help them survive and multiply in your body. A healthier inside means a happier outside. Swanson Probiotic+ Prebiotic Fiber for Friendly Flora Support contains 1 billion CFU of Bifidobacterium lactis, a species that has been well-researched for promoting intestinal and immune health. Along with friendly bacteria, this supplement also contains the prebiotic fiber NutraFlora®. The fructooligosaccharides (FOS) in NutraFlora help create a favorable environment for the probiotics so they can thrive. It’s the perfect probiotic and prebiotic supplement.