Freeze-dried chicken necks are packed with vitamins and boast a high protein content. Cats and dogs enjoy chewing on duck necks not only as toys for entertainment but also to naturally clean their teeth. Duck necks are also nutritionally beneficial, containing ample niacin, which promotes heart health in your pets. Additionally, the minerals found in duck necks can enhance your pet’s immune system and slow down the aging process. Moreover, the vitamin A present in duck necks contributes to maintaining good eyesight in both dogs and cats, making it an excellent addition to their diet.