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The Facts about Vitamin D
Vitamin D plays a major role in protecting your immune health and is a key ingredient for overall well-being and beneficial to many body functions, yet over 70% of all Americans have a deficiency.Despite available food sources of vitamin D and the body's ability to self-produce this nutrient from sun exposure, vitamin D deficiency is a worldwide health problem, affecting people of all ages. We continue to see poor vitamin D levels among the U.S. population, with 70% or more of children and adults having insufficient vitamin D status (U.S. National Center for Health Statistics).
Vitamin D comes in two forms: vitamin D2 and vitamin D3. Vitamin D3, also known as cholecalciferol, is the most effective form for maintaining adequate levels of vitamin D in the body. Therefore, it is important to choose the D3 form when supplementing with vitamin D.
Because of the concern about low vitamin D levels among infants and children, the American Academy of Pediatrics now recommends 400 IU per day of vitamin D3 taken with food. For healthy adults, a minimum of 1000 IU per day of vitamin D3 is recommended. Higher doses of vitamin D may be warranted for those with vitamin D deficiency or certain health conditions. These levels should be determined by a health care professional.
It is expected that the new Dietary Reference Intakes (DRI's) for vitamin D will be released in 2010, which will likely reflect an increase in daily requirement for vitamin D.
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