i need help getting my sheltie to lose some weight. He broke his shoulder two years ago and since he's been kinda lazy (with good reason) but hes weighing in at about 45 pounds, the vet wants him to be down 5-10lbs. now he can walk and run short distances so i make sure we try and get exercise in every day. and i feed him maybe 3/4 cup of weight control food 2x a day, but he's still fat. he also gets kale and sweet potatoes in his food about 3x a week. maybe less treats? i tried to cut back... ugh, any ideas? i'm stumped.