Whole grain milling, a widely used processing method in the UK, reduces the zinc levels in these foods by over 90%. This, combined with the new dietary trend of consuming less animal protein, is likely to be one of the reasons why 1 in 3 adults in the UK are getting less zinc than recommended. Zinc is an integral part of insulin, the hormone used to treat diabetes, and is essential for all protein synthesis in the body. In cases of increased physical or mental demands on the body, as well as increased fiber consumption, there may be a greater need for zinc or a greater loss of zinc from the body, taking into account the fact that fiber-rich foods prevent the absorption of zinc by the body. One-fifth of the zinc stored in the body is found in the skin. Zinc also helps in tissue regeneration and participates in some of the enzymatic reactions necessary for the normal functioning of the skins sebaceous glands. It directly affects many organ systems such as the nervous, immune and reproductive systems. It also maintains the proper functioning of senses such as taste and smell.