Originally Posted by Triv85
Is there a reasoning behind this? A light snack? Does it actually have any nutriotional value for them?
Cats don't eat grass for nutritional benefits. Grass for a cat is the equivalent of us putting our finger on our throat to throw up - yep, this is the idea... When cats eat something that is hard to digest, such as hair for example, they instinctively know that it is better to regurgitate that than let it pass through their intestinal track and risk causing blockage. This is done by instinct, so keeping cat grass in the house will keep them from eating house plants. You should not let them eat grass right after meals though, because they will throw up their food if they do...