Years of extensive research have proven that vitamin D is an essential component for our continued health and well-being. It plays a critical role in the maintenance of strong bones and teeth by promoting calcium uptake from our diet. Enhance the effects of your coral calcium by adding Vitamin D (each capsule contains 5,000 iu's of vitamin D).
Vitamin D is both a vitamin and a hormone. It's a vitamin because your body cannot absorb calcium without it; it's a hormone because your body manufactures it in response to your skin's exposure to sunlight.
"Larger doses of vitamin D will cause the body to alkalize faster." - Robert Barefoot.
Strong evidence tells us that the combination of vitamin D and calcium supplements can be quite helpful for preventing and treating osteoporosis. Other potential uses of vitamin D have little supporting evidence.
We think of vitamin D as the sunshine vitamin, but it's deep within the confines of our bones that it does its best work. Vitamin D is responsible for getting the important bone builders--calcium and phosphorus--to the places in the body where they can help bone grow in children and remineralize in adults.
It does this first by making certain that these minerals are absorbed in the intestines, second by bringing calcium from bones into the blood, and third by helping the kidneys reabsorb the two minerals, says Binita R. Shah, MD, professor of clinical pediatrics and director of pediatric emergency medicine at the State University of New York Health Science Center at Brooklyn.
Fortified milk is one ready source of vitamin D, but you don't have to rely on diet alone to give you the D you need. Ten minutes of summer sun on your hands and face can provide enough, says Hector F. DeLuca, PhD, professor and chairman of the Department of Biochemistry at the University of Wisconsin. "During the summer, you can store up quite a bit of vitamin D in your fat cells," DeLuca says. "If your diet is good, it will probably last you through the winter." (Sitting next to a sun-filled picture window or driving in a car doesn't count, however, because glass filters out the rays you need, DeLuca says.)
As easy as vitamin D is to get for youthful outdoor types, however, such is not the case for the elderly. After evaluating the calcium and vitamin D status of elderly people who were entering nursing homes, researchers from Columbia University in New York City determined that most had low vitamin D levels and that nearly 85% had symptoms of osteoporosis. "There is mounting evidence that vitamin D deficiency in elderly people is a silent epidemic that results in bone loss and fractures," reports Michael F. Holick, MD, PhD, chief of the Section of Endocrinology, Diabetes, and Metabolism at Boston University Medical Center.
There is very little vitamin D found naturally in the foods we eat (the best sources are coldwater fish). In many countries, vitamin D is added to milk and other foods like breakfast cereals and margarine, contributing to our daily intake.
By far the best source of vitamin D is sunlight. However, current recommendations which stress sun avoidance and the use of sunblock may have the unintended effect of increasing the prevalence of vitamin D deficiency. Severe vitamin D deficiency was common in England in the 1800s due to coal smoke obscuring the sun. During that time, cod liver oil, which is high in vitamin D, became popular as a supplement for children to help prevent rickets. (Rickets is a disease caused by vitamin D deficiency in which developing bones soften and curve because they aren't receiving enough calcium.)
Vitamin D deficiency is known to occur today in the elderly (who often receive less sun exposure) as well as in people who live in northern latitudes and don't drink vitamin D enriched milk.5,7 The consequences of this deficiency may be increased risk of hypertension, osteoporosis, and several forms of cancer.
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