The reasons why cats make noises when eating: 1. It is a normal animal behavior and a manifestation of food protection. If they are worried about being snatched by others, they will make sounds to warn each other. 2. The cat feels happy after eating something delicious, and purrs happily unconsciously. 3. Cats may be lonely and want to attract the owner's attention. They hope that the cat owner will accompany the cat to eat.

What to do if a cat makes noises when eating:

1. It is a normal animal behavior and a manifestation of food protection. It is worried about being snatched by others. A sound will be emitted to warn the other party. Therefore, owners should try not to disturb their cats when they are eating.

2. The cat eats something delicious, feels happy, and purrs happily unconsciously. Cat owners can record their cats’ dietary preferences, feed their cats more food they like, and build a bond between the cat and their owner.

3. Cats may be lonely and want to attract the owner's attention. They hope that the cat owner will accompany the cat to eat. Cat owners can stay with their cats and talk to them.