You won't be able to, it's quite natural for them to do so in order to get hairballs out of their stomach. Although there doesn't necessarily need to be any hairball in the throwup. Same for owls, they need to throw up to get rid of bones and hair and stuff.
I doubt that very much. Cats are very good at barfing up food that is bad for them.
After your cat stop growing!
your cat will stop growning when she/he reaches adulthood (1 and a half) or if your cat keeps growning ask your vet
pooing, peeing , and barfing
Why feed a cat? To stop it annoying you.
A cat will stop lactating when she is no longer nursing her kittens. A cat will know when to stop her kittens from nursing when she is ready.
The main reasons for barfing are eating the wrong kinds of food or a bacterial or viral infection. Over consumption of alcohol can also lead one to vomit.
the barfing food chain
Stop giving it treats.If the treats are in a closed cabinet, the cat won't be able to have any unless you give it some. When you want it to stop eating them, lock them up where the cat can't get to them.
You can spray some water on the cat.
Make your cat less attractive
Give it a bath - using cat shampoo.