[header] How to treat feline regurgitation [title] Slow down your cat's eating. [step] If your cat really loves its food or has to rush to eat to get food before other cats in the house, then it may be eating too quickly. This quick eating can then lead to regurgitating if your cat can't digest all the food. 
In order to stop this, you should feed your cat slowly. This can be done by either giving it smaller meals more often or feeding it with a puzzle feeder that makes the cat eat slowly.