My Italian Greyhound was having difficulty going to the bathroom for a while even though I switched him to a prescription highly digestable, low fat diet untill I started him on Vetasyl. One a day for a few weeks helped a little untill I put him on one in the a.m and one in the p.m. and hes soooo much better, its tasteless so he doesn't even know its sprinkled on his food and I love that its an ALL natural product I feel safe in giving to an important part of the family!! Ordering my second & third bottle now!