(Q) I have a three-year-old Labrador X Vizsla spayed bitch who is constantly eating grass. Is she lacking in nutrients? Should I change her diet? (A) Roberta Baxter says: Eating grass can be an indication of a digestive disorder, and often accompanies symptoms such as diarrhoea or vomiting, so addressing any digestive problems is advisable. Have you wormed your dog with