This mineral derives from the Persian word for stone, sing. Zinc has been used as material as early as the Greeks and Romans in 20 BC but was only identified as an element in 1746 by William Champion. Zinc is essential for all living creatures as it forms the active site of over 20 enzymes, the section of an enzyme that must bind with another molecule to initiate the chemical reaction. On average, we retain around 2.5g of Zinc although men require 9.5mg Zinc per day and women need 7mg. Zinc can be found in meat, shellfish, chickpeas, lentils, beans, sunflower seeds, pecans and dairy products.
This mineral naturally occurs in the soil, hence why richest food sources of Zinc include the Brazil nut, mushrooms, garlic, brown rice and eggs. Selenium can be found in any plant grown, or animal grazed on selenite rich soil. Our body mainly stores Selenium in the skeletal muscle where 28% - 46% of our Selenium store can be found.
Iodine was discovered in 1811 by a French scientist. Bernard Courtois came across the purple substance while trying to extract other materials from seaweed, hence the name which derives from the Greek term for violet, iodes. Our bodies can't produce Iodine so we rely on dietary intake and supplementation. Fish and dairy products are rich dietary sources of Iodine, with white fish containing more Iodine than oily fish.
WHAT ARE THE KEY BENEFITS OF SELENIUM, ZINC AND IODINE TABLETS FROM OXFORD VITALITY?
Metabolism: Zinc contributes to normal macronutrient (carbohydrates, protein and fat) metabolism, normal acid-base metabolism and the normal metabolism of fatty acids. In addition, Iodine contributes to normal energy-yielding metabolism.
Selenium contributes to the normal function of the immune system.
Skin, hair and nails:
Zinc and Iodine contribute to the maintenance of normal skin, while Zinc and Selenium contribute to the maintenance of normal hair and nails.
Due to their antioxidative properties, Zinc and Selenium contribute to the protection of cells in the body from oxidative stress.
Iodine contributes to the normal functioning of the nervous system.
Zinc and Iodine contribute to normal cognitive function.
Thyroid function and hormones:
Selenium and Iodine contribute to the normal thyroid function. Iodine also contributes to the production of thyroid hormones.
Normal eye vision:
Zinc contributes to the maintenance of normal vision.
DNA and protein synthesis:
Zinc contributes to normal DNA and protein synthesis.
Zinc contributes to normal fertility and reproduction, as well as to the maintenance of normal testosterone levels in the blood. Selenium contributes to normal spermatogenesis.