ProDog Muscle+ Advanced Mass GainerProDog Muscle+ is a dog mass gainer supplement. Formulated by feeding trials, and not just by analysis, it delivers high grade organic protein, beneficial for every aspect of a dogs muscle growth, development, and definition. Our highest organic protein based product designed specifically as a healthy weight gainer in the form of muscle, not fat! Add Muscle+ to your Dogs daily feed for a steady healthy gain in weight. Muscle+ also has many other