My cat regurgitates his food often. Are there any veterinarians here who might be able to shed some light the problem?

Siames have this eat/barf issue enough so that a cat food company actually made a food specifically for them to stop this. Royal Canin Siamese 38, one bag lasts about a month. I've used it on our Siamese and it does tone down the barfing.

However you do need to check with a vet, if the cat has IBD or a really touchy stomach there are other things the cat needs to get for that. IBD is something pretty specific, the vet will talk to you on that. If it's a touchy stomach, giving 1/4 tablet of Pepcid A/C once a day can help tone it down. But ask the VET about that, to get an ok first. Pepcid A/C is the only cat-safe antacid, the others on the market are toxic to them.

I am not a vet, but my mums siamese cat used to do this until I raised her food and water bowls 5 inches off the floor. This keeps her esophagus open so that the food travels more easily to her stomach. She used to throw up after every meal, now throws up once every two weeks or so,

Newsflash: veterinarians don't answer questions for free. There's a reason they have offices and charge fees.

If its dry, stop feeding him dry of any kind. Feed him canned and/or a raw diet and most of your problems will be resolved. If he's still doing it, then consult a vet and find out if its a medical reason.

Vets don't hang out on this site and even if one was here they don't diagnose over the internet.

Obviously this isn't normal so get him to a vet.

Stop calling him a Siamese. I'd bet money he's just a domestic shorthair with pointed markings.

My cat is similar. She vomits her food up at least a few times a week. I tried spreading her food out on a plate so she can't gobble it down, feeding her special foods both dry and wet, it would reduce how much she vomited but she still does. The only explanation my vet could give me is that she is just an extremely sensitive cat.

Times when she has a hair ball are worse, she now is given a hairball pastes 2-3x a week. It helps stop the vomiting due to that but she still just has a sensitive stomach and vomits

I had my vet run tests to make sure there wasn't an underlying medical problem and she was given a clean bill of health. First go to the vet to make sure he doesn't have a medical problem going on then start playing around with different foods until you find one that works. And you have to be patient, you have to give foods at least a month before deciding they don't work because they have to adjust

Give him a certain amount of food and don't refill it. That wont stop him from over eating. The cat I have now will try to eat everything you give her. Try wet food dry can cause bloating and then purging.

My first thought is that you cat is getting some poor quality food, or needs more wet food, or less dry food...or less fish, beef or ...... well, what I am trying to say is that you first of all need to re-think his food. Older cats can have trouble digesting. Medical problems are also a very possible reason. Things like pancreatitis, diabetes or even constipation can be a reason. If this is new, and your cat tends to eat things off the floor..string, rubber bands, etc....there may be a blockage...a vet visit is where to start. And do it soon.

Take him to the vet. He may have diabetes. Or it might be hairballs. I've also had problems with my cats eating a lot of dry cat food, then going over and getting a drink. The food swells up in their stomach and they have to barf it up. Try a different cat food. But take him to the vet first. At that age, they develop sensitive stomachs.