Natural Organic High Quality Probiotics For Pets refers to a probiotics that is friendly bacteria that is found in the dogs and animals that have billions of them in their stomach to help fight infections that make the immune system stronger, help digest food and make vitamins and nutrients. These are called microbiomes and a healthy dog needs a healthy microbiome. Natural Organic High Quality Probiotics For Pets is most often used for maintaining a desirable intestinal microbial balance.