Health What Are Probiotics For Dogs? If your dog has ever suffered from diarrhea, probiotics have probably been suggested to you by a friend, coworker or your veterinarian. Here, we look at how probiotics for dogs work, what they can be useful for and which ones to buy. By Eileen Fatcheric, DVM - Published: May 20, 2021 Updated: May 17, 2021 0