My dogs get a sprinkle of garlic powder on their food every night. On the diabetic dog board it is recommended to get a reluctant dog to eat. As dogs get older, some of them need a little incentive. The amount they get isn't enough to do any damage--lest than a quarter of a teaspoon. They also get a teaspoon of low fat/no fat yogurt mixed with their food to help digestion and avoid gas. Seems to help mine.

Mary