So you are hitting the gym and looking to get in shape, but don't forget about the all important protein component!
Protein is an essential part to every meal, because it builds and maintains muscles. Aim for one gram of protein per pound of body weight a day, however less active people need less. Be sure to spread your protein intake over 5-6 small meals throughout the day.
Keep in mind, however that your body can only process 25-30 grams of protein per meal.