Kong Zigggies are healthy treats for your dog. Kong Puppy Ziggies are calcium enriched, low in fat, high in protein treats that are easy on your puppy's tummy. Kong Ziggies have a hypoallergenic formula specially formulated for adult dogs. Both the Puppy Ziggies and the Adult Ziggies freshens your pet's breath and cleans their teeth while they chew. Either formula is highly digestible and created to fit in the Puppy Kong, Classic Kong or Extreme Kong Dog Toys.