Both dogs will eat grass....do they eat the grass BECAUSE they are ill and maybe trying to settle their stomache..or do they get sick BECAUSE THEY ATE THE GRASS??? Doesn't happen often........but I notice Addie eating grass and for whatever reason, I realize she is not feeling well when she does it. This is never a situation where she is very ill...actually she will seem to be ok shortly after, but the grass does make her vomit slightly sometimes????