Growth and Maintenance
The human body requires protein for the maintenance and growth of the tissues. The protein of the body remains at a constant level of turnover. Under common circumstances, the human body converts the same quantity of protein that it utilizes to repair and build tissues. Other times, it breaks apart more protein that it makes, thus raising the needs of your body. this normally occurs in the time of illness, while breastfeeding and pregnancy. People get better from surgery or an injury, athletes and older people also require more protein. The activity level and health depend on the intake of protein.