subject: Treating Bad Breath in Dogs and Cats [print this page] In addition to preventing your pet's bad breath by feeding your cat or dog a proper diet, it is important to provide dental care. A number of dental products for cats and dogs are available for the prevention of calculus buildup and bad breath. To avoid toxins and harmful ingredients, it is important to use a dental care product for pets that has been formulated with natural ingredients. Look for a dental care product made with grape seed extract and grapefruit seed extract for the best results in preventing plaque buildup, oral infections, and bad breath.