Vet at FirstVet answers:
Most dogs that are picky eaters have stomach issues. There are a few warning signs that can help determine whether your dog is a picky eater or if it actually feels sick and therefore does not want to eat:
-The dog eats poorly and loses weight. This can be serious.
-There is intermittent, recurring vomiting (bringing up food or bile).
- The dog has problems with loose stools.
- Unwilling to eat in the morning even though the stomach is rumbling.
If you notice that your dog suffers from any of the above symptoms it is best to seek advice from a veterinarian.