The reasons why cats vomit all the cat food they eat are:

1. It is caused by changing food too quickly.

2. If the particles of cat food are relatively large, it will feel like a foreign body in its throat when eating, and it will vomit.

3. Hair ball syndrome will cause poor digestion and absorption, causing symptoms of vomiting after eating, and retching.
4. It may be that food irritates the gastrointestinal tract, causing gastrointestinal motility disorders in cats and causing vomiting.
5. If you eat too fast, the cat will vomit if it eats too fast, so it needs to be fed with a slow feeder.

How to prevent cats from vomiting cat food:

Do not give cat owners too much cat food at one time. Eat smaller meals more often and reduce the amount of cat food. This is the best advice. The solution is to change the cat's food.