Q. My dog gets very loose stools
JESSICA L DESROSIERS
A. Loose stools can be caused by a wide number of things, however the most common two are internal parasites and food ingredient allergies. Internal parasites like worms can sometimes be seen in the stool, and may also cause other symptoms such as vomiting, bloated abdomen, or changes in appetite. Bringing in a stool sample to your vet can help determine if there are parasites present, and if so, what type.
Food ingredient allergies can also cause similar symptoms and are commonly caused by ingredients such as wheat, corn and soy, but some proteins such as beef may also cause it. Switching to a different food that does not have these ingredients may help. Be sure to switch over a period of 7-9 days to give your dog's stomach a chance to adjust as switching too quickly may cause vomiting and more diarrhea.
If you still can't figure out what the cause to the loose stools may be, then a more thorough examination or additional tests at your vet may be best.