Health knowledges content
Immune system is one of the most important systems of our body, in fact it is impossible to live without efficient immune system. In addition to protect human body from dangerous microorganisms, immune cells recognize and remove cancerous cells from our body. In other words, in all humans there may be cancerous cells which in most cases are recognized and destroyed by immune system. For that reason, in recent years using vaccines which can enhance the performance of immune cells, for preventing some types of cancers have increased. One way which can support the immune system is using nutritional supplements which contains vitamins and minerals such as; vitamin C and Zinc.