By Dr. Sarah Myers, DVM. Reviewed by Dr. Elizabeth Davis, MVB
A change in your dog’s eating habits or appetite usually indicates they are feeling unwell. It is important to consider this in the context of their overall behavior:

These observations can all help you and your veterinarian to better understand what is wrong, and if your dog requires treatment.
Dogs can go on without food for a 1-2 days without significant harm if there are no other major symptoms present; however, a dog that is also displaying any of the following symptoms is a cause for concern:
- Vomiting
- Diarrhea
- Lethargy or weakness
- Drinking more or less water
Pro Tip: A rule of thumb to differentiate between occasional dietary boredom and dietary changes is the length of time that your dog has been eating less or refusing food, along with any other presenting symptoms.