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Selenium
Introduction:
Selenium is a trace element necessary for the maintenance of health. It is found in foods such as Brazil nuts, poultry, seafood, and meats, while significant amounts are found in oats and brown rice. This naturally occurring substance helps to limit the activities of free radicals which can be harmful to the body. It is known that selenium can enhance the antioxidant capacity of the body, and it may help to reduce cell damage. Several research reports indicate an association of selenium blood levels with a reduction in risk of cancers occurring in the lungs, colorectal, breast and prostate. A review of research on selenium by Chen YC et. al. found that selenium compounds not only have had evidences for a preventive role in cancer, but also may reduce the possibility of cancer metastasis by reducing the tendency of cells to migrate, invade and form new blood vessels (1). Selenium is important for immune system support and low levels have previously been linked to miscarriage, pre-eclampsia, and low fetal growth, but despite these concerns, there has been no evidence based recommendation for this indication by any authority. (2)
