The reasons why Chihuahuas don’t eat dog food:
1. If the dog food you buy for your dog does not suit its taste, it will not eat it. You can buy some trial packs of dog food first. Give it a taste test and then buy a larger package based on its preferences.

2. If your dog is often fed snacks, it will cause it to be picky and not eat dog food, so it needs to be fed fewer snacks.
3. When a dog just arrives at a new home and is not accustomed to the new environment, he will not eat. He will get better after he gets used to the environment.
4. If the dog suffers from oral disease, he will not eat dog food and needs to be sent to the pet hospital for treatment in time.
5. If your dog eats too much, causing indigestion, he will stop eating. You can feed him some pet probiotics to regulate his gastrointestinal tract and promote digestion.