Why do cats eat grass?

I don't know about the cat, but my dog is doing the same. She eats the grass. Maybe, it's like vegetables for them . Sometime, she throws up too, but not all the time if she chews it correctly.

I have always heard that animals eat grass because they are sick to the stomachs and grass makes them puke. Then they feel better. My cats and dogs do it sometimes too.:)

I hear its because they are trying to throw up - but I've got a few cats that can eat it and not throw up - go figure... They seem to like certain kinds of grass better than others

The reason is if their feel sick after eating their food the grass will settle their stomach down thats why they do it and plus it rid of fur balls thats not good for them so thats why eat grass alot.

cd

As far as I know cats eat grass to make themselves throw up. Its usually because they have an upset stomach or have eaten something bad so they eat grass which makes them sick.

I guess the cat is using grass for brush their teeth until clean, they also play on the grass while shower. Not only that, they like to eat the roots of plants if they are hungry.

my cats and dogs do this too.... my mum always told me that its like their medicene. they know when they arent feeling good, so they take their medicene "grass" and that makes them throw up and then they feel better....