There has been no substantial proof anywhere that I can find where clumping litter kills kittens. The only thing I have ever seen was one email written by a woman who claimed clumping litter killed her kittens. I subscribe to a wonderful magazine called Catnip that addresses all sorts of health issues and care issues. This is what they have to say about kittens and kitty litter:
"Cats of all ages occasionally eat their litter. According to Dr. Barbara Stein, director of the Cat Clinic in Chicago, Illinois, â€œCats and kittens often ingest litter when they are anemic,â€ The behavior is an example of pica--a craving for a non-food substance. If you see your kitten or cat eating litter, take the animal to your veterinarian for a checkup.
Some owners have voiced concerns to CATNIP about kittens ingesting clumping litter. Is clumping litter safe for kittens? At present, nothing in the scientific literature suggests problems for kittens that ingest clumping litter. On the other hand, Dr. Amy Marder, animal behaviorist and clinical assistant professor at Tufts University School of Veterinary Medicine, has heard stories from veterinarians and veterinary technicians about cases where (they believe) clumping litter caused a problem. â€œBut these cases are rare and anecdotal,â€ says Dr. Marder. â€œNo one has collected the data.â€
Although there is no proven relationship between ingestion of clumping litter and gastrointestinal upsets, we recommend keeping a watchful eye on kittens. given that kittens are curious and adventurous, you have to expect that when you plunk them down in any litter for the first time, they may test it out. Some may taste the new â€œstuffâ€ to find out whether itâ€™s food, and some may play in it. Certainly, as with any kitten â€œfirst,â€ you need to be available to supervise and help a kitten understand what itâ€™s meant to do in a litter box."
"Your kitten would have to be really small and eat a lot of litter before it would do any harm" according to the experts.
I have been using clumping a long time, and have never had a problem. The one kitten I had long ago that kept eating litter, was found to be anemic and once treated, stopped eating the litter.