What is not safe for cats is to eat grass from lawns that have been treated with chemicals. It is usually a mix of barley rye and wheat grasses. Explore 2000 Top Brands at Amazing Prices.
Cats lack the digestive enzymes necessary in order to break down plant matter according to PetMD and after eating a large amount of grass it will simply come back up in an undigested form. Cat grass ingestion probably does not have any true benefits for the normal healthy cat other than the distraction argument. In addition to providing enjoyment cat grass benefits your kittys life by helping her digestive system. There is no research to suggest that eating a given amount of grass is bad for your cat.