Hi John @johnbishop. Interesting reading that a “gut” can predict if a person is healthy or not. Evidence suggests the more bacteria found in the “gut” the more healthier the person will be. I had searched the recommended tablets for the bacteria to start the yogurt. The ingredients list a flavoring of mandarin orange. I was disappointed. I prefer plain. My prebiotic supplement contains 20 strains of bacteria of which one is the recommended bacteria, L reuteri. A person can also make a yogurt using a prebiotic supplement. I will try making yogurt with 4 cups of whole milk to one dose of the supplement. Lol, I feel like I am starting a lab. Toni