Zinc is the front line system for the immune system and essential to general health and vitamin c is well known for it's ability to assist in tissue repair and shortening illness duration. Zinc is an essential nutrient in at least 200 enzyme reactions in the body. Parts of the body that need a healthy supply of zinc include the nervous system, immune system, digestive system, detoxification and essential fatty acids. Low levels of zinc have also been implicated in infertility, hormonal and prostate issues. Zinc is one of the essential components for cell repair and maintenance - slow healers are usually low in zinc! If we were to generalise, the better your zinc status, the less illnesses you tend to get. Some reports show that up to 4 in 5 people are low in zinc.