Generally speaking, slow feeders are safe (all 10 products on our Top list certainly are). However, some bowls that are made made of low-quality plastic and other flimsy materials can be dangerous to aggressive chewers as they can bite off small pieces of the bowl and ingest it. But cheap plastic feeders are not the only offenders - some dogs can chip a tooth on ceramic feeders as well. That all being said, your dog can chew off a part of a regular plastic food bowl and swallow it, just like they can chip their tooth on a traditional ceramic food bowl. In other words, these are possibilities with any type of bowl, including the slow-feeding ones. To ensure your pet is safe and their bowl in one piece, all you have to do is:\r