OK - This is a problem I had recently with my pup. It's a bit of a taboo subject that is quite common and people seem to ignore so I thought I'd tell you about my experience incase it might help anyone else out there - who might not want to ask for help about Poo eating. When my American Bulldog pup got to about 3 and half months he decided to start eating his own poo. It was horrible!!! his breath would stink vile as you can imagine! And being halfway through his house training it made things very difficult as I never knew if he had been or not as he would eat the evidence - EW! As soon as I discovered what was happening I started searching the net to find out what was wrong with my dog - was he demented??? I was relieved to find out that this is quite a common problem in both puppys and adult dogs and is know as Coprophagia. So why do they do it? It can be for many reasons. Poor diet, boredom, poor digestion, too rich diet or some believe they do it to hide their poo due to being afraid of their owners reaction - this could be due to a telling off they have recently had. At the time my dog had been eating what I had been eating due to running out of his regular dog food - so that was the first thing I sorted, I also gave him some tablets called deter which make his poo taste discusting. Some people also recommended feeding my dog pineapple with his food which I was told would give the same affect as the deter tablets!- The Deter tablets and change of diet resolved this problem immediately and I was so relieved and for once happy to be cleaning up dog sh*t again!!!