Reasons why cats are picky eaters:
1. If the food bowl is not clean or has an odor, the cat will not eat. The owner should clean the cat's food bowl regularly.
2. If a cat has an upset stomach, it may also become picky about food. In this case, you may need to give the cat some probiotics to regulate its digestive system and improve its appetite. 
3. If you buy cat food with a flavor that your cat doesn't like, it can also cause your cat to be a picky eater. You can buy some sample packs of cat food to feed it, and then choose the flavor that it likes to buy as its main food.
4. If you feed your cat too many treats, it will cause the cat to become a picky eater. Reducing the amount of treats you give will help improve the picky eating habit.
5. If a cat has oral diseases, it may also become a picky eater. It is necessary to take it to the vet for examination and treatment in time.
