my APBT wont stop eating grass

[tl_ashmore]

Bula and Dixie both get the same food, but Bula is the only one that eats the grass. Dixie doesn't do it. I was feeding them Purina ONe Lamb and Rice, but I had to switch to Natures' Recipe Allergy. Bula had real bad allergies and this dog food helped her out a lot. She looks much better.