If the dog has signs of digestive issues and you also're considering probiotics, make sure to talk to your vet 1st so they can rule out any serious health care ailments. Who It’s For: Owners of younger puppies want a mild probiotic formulation personalized to assist early enhancement and digestion. https://www.amazon.com/Healthy-Treatz-Probiotic-Chews-Dogs/dp/B07VCGNM6X