I have a 2yo who's had this issue since puppy. He likes to regurgitate his food from time to time. We tried slow feeders, raised bowls, smaller portions, switched food, etc. The vet said they saw nothing after many tests. So I am not sure what else to do. It's not a huge concern. Sorry if this is gross. The vet said, "Let him eat it back up right away," which he does. But I'd rather it doesn't happen for the sake of my mop and rug LOL! So if you have any other ideas, I would love it 
