Dog Preferred food.

Peanut butter. A favorite treat of many canines. Not only is it a good source of protein, but it also contains heart healthy fats, vitamin B, niacin, and vitamin E. Stuff peanut butter into a Kong to keep your dog busy for hours. Choose raw, unsalted peanut butter. NOTE: Be absolutely sure that you're not using sugar-free or "lite" peanut butter that has artificial sweeteners, particularly xylitol, as these substances are incredibly toxic to dogs.

Cooked chicken. Can be slipped into the bowl along with your dog’s regular food to add a spice and extra protein to its diet. This also makes a good meal replacement if you’re in a pinch and out of dog food.

Cheese. A great treat for a dog as long as she isn’t lactose intolerant, which a small percentage are. Make sure to monitor your dog’s reaction. Opt for low or reduced fat varieties and don’t overfeed, as many cheeses can be high in fat. Cottage cheese is typically a good choice.

Baby carrots. Good for a dog’s teeth, carrots are low calorie and high in fiber and beta carotene/vitamin A.

Yogurt. High in calcium and protein. But make sure to only choose yogurts that do not contain artificial sweeteners or added sugars. Yogurts with active bacteria can act as a probiotic and are good for your dog’s digestive system.