Group 6 Mn, I, Se, F, Cr, Mo - Trace Minerals Iodine...

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Trace Minerals: Iodine, Selenium, Fluorine, Chromium, Molybdenum, Manganese IODINE (I 2 ) Present in food as iodide (I) The heaviest element needed for human health and is responsible for only one function in the body, the synthesis of thyroid hormones Iodine is needed for healthy thyroid function Iodine is a chemical element needed, but cannot be made by the body (essential nutrient) O For treating skin disease O Prevents breast cancer, eye disease, diabetes, heart disease and stroke Iodine reduces thyroid hormone and can kill fungus, bacteria, and other microorganisms such as amoebas. FOOD SOURCE Saltwater Seafood O Shellfishes are better sources of iodine compared to finfishes O Excellent sources (~90% RENI per 4-ounce serving) Scallops Cod O Very Good sources Shrimp O Good sources (25-140 micrograms per 4- ounce serving) Tuna Salmon Sardines Seaweed and other sea vegetables O Brown sea vegetable species – richer in iodine (kelp, wakame, etc.) O Red sea vegetable species Dairy products O Not naturally a good source of iodine O Provide significant amounts because iodine is added to cattle feeds and sanitizing solutions used in dairy processing O 20% RENI from: Cow’s Milk (4 ounces) 1 egg Yogurt (1/2 cup) Breads and cereals Plant based foods Strawberries O Very good source O 13 micrograms per cup O Provide about 10% recommended amount of iodine Non-seafood, non-dairy foods O Only 5-30% of iodine you need Vegetable group (sweet potatoes, onions, spinach) Fruit group (bananas, cantaloupe) Grain group (barley) Nuts (peanuts) Iodized salt O Fortified table salt that has been processed to contain significant amount of iodine. General government standard: 76-77 micrograms per gram of salt About a half teaspoon of salt supplies the adult RDA for iodine *GOITROGENS Decreases the bioactivity of iodine Found in raw vegetables Decreases iodine absorption and inhibit iodine use by the thyroid gland RECOMMENDED ENERGY AND NUTRIENT INTAKE FOR IODINE Infants: 90 micrograms Children: O 1-6 years old: 90 micrograms O 7-9 years old: 120 micrograms Males: O 10-12 years old: 120 micrograms O 13+ years old: 150 micrograms Females: O 10-12 years old: 120 micrograms O 13+ years old: 150 micrograms Pregnant women: 200 micrograms Lactating women: 200 micrograms ABSORPTION, TRANSPORT, STORAGE, AND EXCRETION OF IODINE Group 6: Abut, Bartolome, Empress, Erpe, Ordoyo, Paltingca, Romero, Quimbo
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Trace Minerals: Iodine, Selenium, Fluorine, Chromium, Molybdenum, Manganese FUNCTIONS OF IODINE essential component of the thyroid hormones thyroxine (T 4 ) and triiodothyronine (T 3 ) Most of the circulating thyroid hormone in the body is in the form of T 4 . Within body cells, T 4 loses an iodine molecule and is converted to T 3 , the active form of the hormone. The enzymes involved in this conversion (called deiodinase enzymes) all require the trace mineral selenium. Thus, a selenium deficiency can limit the activity of deiodinase enzymes, resulting in
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