As I read through the article on anal gland issues and then comments, I didn't notice anything on probiotics. My dog had several instances with impacted anal glands including them getting infected. The vet prescribed an antibiotic. But the second time he prescribed an antibiotic, the infection went away but came right back (like a child's ear infection would). So I thought about my kids and decided to try a probiotic. It worked great. In fact, it worked faster than the antibiotic. And now I add it to his food about once a week. He was already getting a healthy Merrick brand food, carrots and a little olive and or coconut oil. I have to be careful with olive oil and coconut oil. More than just a little and they will actually cause the impaction. My dog also can't have any steak fat or too much apple.