Helps Maintain Digestive Health & Regularity Whole Food Dietary Supplement Vegetarian Gluten Free Primal Defense is a natural blend of 12 species of probiotics and Homeostatic Soil Organisms (HSOs), utilizing the Poten-Zyme process to deliver three billion live cells per day within a whole food matrix. The HSO probiotic blend in Primal Defense helps support normal gastrointestinal balance of good and potentially harmful bacteria to help maintain a balanced, healthy internal environment and maximizes the benefits of a healthy diet by supporting normal absorption and assimilation of nutrients in the gut.