Treats you should avoid giving your dog include those that contain harmful additives like artificial colors, flavors, or excessive amounts of sugar and salt.
It's also wise to steer clear of treats that are hard and might cause dental damage, especially for older dogs. Ingredients such as chocolate, xylitol (a common sweetener in sugar-free products), grapes, raisins, onions, and garlic are toxic to dogs and should always be avoided.
Additionally, ensure that any treat you give your dog is appropriate for their size and chewing capabilities to prevent choking hazards.