People are often quite surprised to hear about the increase in required Protein by the body if you lift weights with any real intensity (& that can include body weight & boot camp type exercise).
When we exercise or lift weight we break down muscle tissue, what repairs muscle tissue you ask?? Protein does!
After you finish a workout you are actually weaker than when you started, what you do (rest & eat)between leaving the gym & coming back for your next workout will determine how quickly you move forward with the results everyone wants.