Protein deficiency implies a deficiency in protease. A protein deficiency compromises the immune alliance, leaving a person susceptible to frequent or chronic infections, either bacterial - 0r viral - or both. It can make them vulnerable to other more serious conditions, including cancer.Protease deficiency can lead to edema (retention of fluid). The edema can manifest itself in   various places in the body, including swelling of the hands and feet as well as fluid in the ears. When a buildup of toxins in the large intestine happens, toxic colon syndrome can occur. This is another condition that results from a protease...