Smelly poop and nasty farts

[skittledoo]

One thing I've noticed with Joey ever since day one, he has really smelly poops and he farts periodically throughout the day and it seriously stinks.

I want to ask my vet about it at his next appointment. He has been dewormed though I'd like to take in another stool sample to make sure there's nothing else abnormal.

Is there anything I can give him to help with his smelly butt? Someone mentioned to me to look into charcoal treats? He's currently eating Blue Buffalo Chicken and Brown Rice. I'd rather not change his food if I don't have to since I don't want to be feeding the dogs three separate types of food if I can avoid it.

The people I got him from said that he has always been flatulent and his stools have always smelled pretty bad no matter what kind of food he's been on.