50 Billion† 31 Probiotic Strains Supports Immune and Gut Health Probiotic Plus Prebiotic Fiber Stomach Acid Resistant Capsules Dietary Supplement Probiotic + Prebiotic Fiber Wide Variety of Probiotic Strains + Prebiotic fiber A healthy gut has a diverse assortment of bacteria. So should your probiotic. A high-diversity probiotic can help restore the natural diversity of your gut flora that’s lost to stress, poor diet, and medications. Stomach Acid Resistance About 90% of probiotics are killed by stomach acid. This product uses acid-resistant capsules to protect the bacteria. This delivers virtually all cultures into the intestines intact, where they can repopulate the gut. †At time of manufacture. 5 billion guaranteed at time of expiration when stored as recommended.