Here's why:
* Immature nervous system: Kittens' nervous systems are still developing, and catnip can have a more intense effect on them, potentially causing overstimulation or anxiety.
* Possible digestive issues: Kittens' digestive systems are more sensitive, and catnip can sometimes cause digestive upset.
* Risk of choking: Kittens might be more likely to ingest catnip, increasing the risk of choking.
Instead of catnip, you can provide kittens with other enriching toys and activities to keep them entertained and stimulated.
Remember, every kitten is different, so observe your kitten's reaction to any new substance, including catnip. If you notice any adverse reactions, stop giving it to them.