Experts recommend that organs should account for 5% of a dog's meals on a daily basis. Beef liver is especially nourishing, Vet will recommend serving beef liver for a short period of time for dogs that have recovered from a serious illness and have lost excessive blood (such as tick fever). In addition to serving as a snack, beef liver slices can be added to every meal. Just 2-3 slices will do the job. In fact, when you open the bag, you will smell a strong beef liver smell, it does stimulate the dog's appetite.