Whey protein is the most studied supplement after Creatine. It has been proven that protein helps build muscle, with the ideal ingestion time being immediately post-workout, or in your “anabolic window.” The only protein that is able to be digested within 45 minutes is whey due to its purity and chemical properties. Whey usually comes in a few forms: Hydrolysate, Isolate and Concentrate. Isolate is more filtered, and is more quickly absorbed by the body than Concentrate. However, it is important to keep a balance of both, since your muscles have a constant demand for protein.
To be a great athlete you need to be able to sustain high forces (speed x strength = power). Bigger muscles can generate more power because they are capable of producing more force at a given speed. The higher your training intensity, the faster you deplete your body of carbohydrates, amino acids, fat, water and electrolytes. Your body’s nutritional priorities are replacing carbohydrates and amino acids. Failure to replace carbohydrates can cause your body to catabolize (break down) muscle tissue resulting in serious losses of muscle mass, strength, speed and power.