It depends on what you consider harmful. Overpopulated feral cats can greatly reduce the bird population of an area. With domesticated cats, diseases that can be transmitted to humans are a risk. Toxoplasmosis is a disease spread mostly through cat excrement. So you should take precautions when you clean a litter box, and you shouldn't get near cat waste if you are pregnant. Rabies can be spread from cats to humans, so you want to make sure any cats you own are vaccinated. There are also Allergies to cat hair and skin.
no iceberg is not harmful for cats.
Yes, it is harmful in all forms.
Maltodextrin is harmful to cats and may even be harmful to some humans. It is a polysaccharide used in human food.
no betta fish are not harmful to cats thankfully!hello! i love cats and i now that beta fish is not poisned to cats, they have very strong immunity!
Radon is harmful for all animals.
No because they are natural friends.
No ginger is not harmful to cats.
I'm no vet but I don't think baby oil is harmful to cats. If its safe on babies it's probably safe on cats.
both chocolate and caffeine are toxic to cats
NO. i can be on cats with very little fur though.
yub.
Yes, it contains phenols which are highly toxic to cats.