You know how important proper nutrition is to overall fitness. But keep in mind that with every workout, specific nutritional demands are made on your body to insure muscle growth - demands for additional protein.
Protein synthesis is the mechanism behind muscle fiber growth which occurs after exercise. Just how much is synthesized depends on the intensity, duration and type of exercise performed, but every exercise, particularly resistance training, leads to this synthesis. So, in the hours following resistance training, it's vital to consume adequate amounts of protein to maintain the muscle mass you already have and to "feed" the muscles you are building.
Recent studies show that you must replace the protein you've used within 24 hours after exercise. By doing so, your body won't take protein from other muscles to nourish the muscles you've just used.
Talk to your Fitness USA Instructor to learn how you will best feed your muscles, and their growth. It's the health-wise thing to do!