Peanut butter is an excellent source of niacin and folic acid which help convert food to energy. Peanut butter also contains Biotin which helps repair thin and splitting nails.
Eggs, without the yolk, provide a great source of protein without the cholesterol. Eggs are great for your dog' as they provide elements to strengthen and soften your dog's coat.
Skim milk and parmesan cheese supply protein and calcium which every organ in your dog's body needs.