. Labeling contains CFUs in the product or service, which suggests “colony forming device,” and signifies how many Are living bacteria cultures are active and can divide so the useful colonies kind. Always Check out with all your pet’s vet before starting any new dietary supplements or medications. Lactobacillus acidophilus. https://www.amazon.com/Healthy-Treatz-Probiotic-Chews-Dogs/dp/B07VCGNM6X