"A powerful immune system benefits a person's health. Can particular foods help to boost the immune system?" Check out... The immune system consists of tissues, cells, organs, and enzymes. These work together to carry out biological processes that combat pathogens, viruses, bacteria, and foreign substances that cause infection or disease. When the immune system makes contact with a pathogen, an immunological reaction generates. The immune system produces antibodies, which bind to pathogen antigens and kill them. Including certain foods in one's diet may help to boost one's immune system. Continue reading to learn about 12 foods that help the immune system. Citrus fruits Most individuals reach for vitamin C when experiencing cold and cough because it aids in the development of their immune system. Vitamin C increases the white blood cells called lymphocytes, necessary for fighting infections. All citrus fruits are fortified with vitamin C. With so many alternatives...