Konecny Cats may eat grass as a way of ridding their digestive tract of something unpleasant or inedible. Indoor cats need to eat cat grass because. Its possible that your cat is eating grass to help with digestion issues.
Some cats throw up after eating because of other factors such as changes in their diet but if you know your cat has ingested grass expect it to come back out again. The Answer Is Yes. While nobody knows for sure its believed that cats sense when they need folic acid to help them feel better. When your cat is eating a lot of grass however ensure you take it to the vet as soon as possible.