The reasons why cats shed tears after eating cat food:

1. Infection. Your cat's eyes are infected with bacteria, viruses, or parasites.

2. Injured. Inverted eyelashes, accidental injuries to the conjunctiva, and the entry of insects, foreign bodies, chemicals, etc. into the eyes will cause cats to shed tears all the time.

3. Food problem. It may be that there is a problem with the cat food, or the cat is not adapted to this cat food, and needs to be replaced in time with food that suits the cat's taste.

4. Conjunctivitis. If the cat's tears start slowly, the eyes and eye area gradually become red and swollen, the cat blinks or squeezes abnormally, and the eye feces increases, it is likely to be conjunctivitis.

5. Nasal branch. Cats infected with rhinophyma not only often shed tears, but their overall mental state is not good.

6. Cold. Blockage of the nasolacrimal duct caused by a cold can also cause tears when eating.