I am not sure, I honetsly think that the can I food I gave her was too rich, she has brought it up before, we are still weaning off the Alpo canned food.
Shai used to eat grass an awful lot w/o vomiting. I read at the greyhoundgang.com that that is just a trait that greyhounds have!! I think there has only been once when she vomited that I found grass in it.
She is doing well, no relapses since the other night.