The vet told us to get River to lose some weight. So we are trying to give him more food and less snacks/scraps.
They have low calorie food too that works well. When we had to get the big dog’s weight down, I just reduced the amount of food by 25%. We don’t do treats or snacks because they do tend to make dogs fat. Maybe a once a week milkbone but that’s it. Cutting his food ration helped him to lose slowly. Increasing activity helps a lot too, with at least one daily walk. That’s all we could do with him when it was suspected he had heartworms. Now he gets more activity.
Mine are on lean cuisine science diet already. Try mixing chick peas in with his food that worked for loosh.