AddLife™Cat Dog Vitamins and Supplements Addlife is a highly beneficial supplement for both dogs and cats. Addlife takes a standard processed pet food and makes it exponentially more nutritious and genetically appropriate. The genetically appropriate diet for all carnivore companion animals is one that mimics the natural archetypal model. This is a diet high in meat and fat, low in starches carbohydrates, and replete with unadulterated vitamins, minerals,