8 Foods You Should Never Feed to Your Dog

Xylitol, which is a nonsugar sweetener and can be found in sugar-free gums and candies, is highly toxic to dogs. "It warrants an immediate emergency visit to the vet if you suspect your pet has ingested anything containing xylitol," Dr. Shelly Zacharias, DVM, MS, VPM, BCMAS, and vice president of Medical Affairs for Gallant, told POPSUGAR. Consuming xylitol can damage a dog's liver and cause seizures. If your dog's breath has a minty smell to it and they are acting confused, it's important to take them to the vet immediately, especially if you know you have xylitol-containing candies around the house.