When probiotics are microorganisms as part of your Puppy’s gut, prebiotics are literally just nondigestible carbohydrates that probiotics feed on to stay alive. Lactobacillus acidophilus. The most popular probiotics, this pressure is found in quite a few fermented foods like yogurt. The effects of Lactobacillus acidophilus Reliable Source PubMed Central https://www.amazon.com/Healthy-Treatz-Probiotic-Chews-Dogs/dp/B07VCGNM6X