Sugar-free gum is very toxic to dogs. Common signs of toxicity include lethargy and pets not acting like themselves. If you suspect that your dog has eaten gum, bring them to your veterinarian immediately. Video of dgfPFo3nF30 Related Articles Valvular Heart Disease in Dogs Dog Hair Could Shed Light on Cushings Disease in Dogs Two-Legged Pup Gets Fancy New Wheels Sick Sinus Syndrome (SSS) in Dogs