Like humans, dogs may experience nutrient depletion during exercise that can lead to fatigue and reduced performance. The Purina Pro Plan SPORT PRiME nutritional supplement bar is a nutrient dense and protein-rich bar. The Purina Pro Plan SPORT PRiME nutritional supplement bar's number one ingredient is beef, for a consistency and appearance like meat jerky, combined with whey protein and hydrolyzed soy protein, which are rapidly digested and absorbed. The product is highly palatable with a taste dog's love. The protein and fat in the Purina Pro Plan SPORT PRiME nutritional supplement bar support an exercising dog's metabolism for endurance and prolonged physical activity. Exercising dogs have higher dietary protein needs and rely primarily on fat for energy for most types of physical activity.