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     How A Vitamin D Deficiency Could Kill You-II


    Earlier this month, the same journal included research led by Harvard scientists linking low vitamin D levels with heart attacks. And previous research has linked low vitamin D with high blood pressure, diabetes and obesity, which all can contribute to heart disease.

    The new research "provides the strongest evidence to date for a link between vitamin D deficiency and cardiovascular mortality," in the Harvard study of 18,225 men.

    Low vitamin D levels also have been linked with several kinds of cancer and some researchers believe the vitamin could even be used to help prevent malignancies.

    It has been estimated that at least 50 percent of older adults worldwide have low vitamin D levels, and the problem is also thought to affect substantial numbers of younger people. Possible reasons include decreased outdoor activities, air pollution and, as people age, a decline in the skin's ability to produce vitamin D from ultraviolet rays,  use of sunscreens the study authors said. The use of statin drugs and low fat diet are to blame read more in the bottom section.

    Some doctors believe overuse of sunscreen lotions has contributed, and say just 10 to 15 minutes daily in the sun without sunscreen is safe and enough to ensure adequate vitamin D, although there's no consensus on that.

    Diet sources include fortified milk, which generally contains 100 international units of vitamin D per cup, and fatty fish 3- ounces of canned tuna has 200 units.

    The Institute of Medicine's current vitamin D recommendations are 200 units daily for children and adults up to age 50, and 400 to 600 units for older adults. But some doctors believe these amounts are far too low.

    CIDPUSA RECOMMENDS 5000 UNITS DAILY for adults, children can use cod liver oil daily according to instructions on formulation. If you use sun blockers you need 4000 units daily read below.

    The synthesis of Vitamin D,(calcitrol)

    Researchers are concerned that we are in the midst of an epidemic of vitamin D deficiency of immense proportion. Study after study of nursing home populations, of nursing mothers, of healthy male and female volunteers and of various children’s groups have consistently documented how common is Vitamin D deficiency and

     This high prevalence of vitamin D deficiency, even in those taking multivitamins, indicates that a critical review of vitamin D needs is a major priority.

    A vitamin D precursor is synthesized in the skin from cholesterol in response to absorbing UVB rays. It then gets converted in the liver to an intermediate form. In the kidneys it joins with an important enzyme for conversion into its active hormonal form.

    Many factors potentially interfere with the UVB conversion. People having darker skins are much more likely to have vitamin D deficiency. The aged skin of the elderly impairs cholesterol conversion as does the presence of obesity Use of statins lowers vitamin-D. Our present day emphasis on protecting our skin from the sun, using sun-screens and blockers, also cuts down on the ability of UVB to convert cholesterol to vitamin D. Last but not least, one needs UVB exposure.

    Without  sun exposure you need  4,000 units of vitamin D a day. You would need 40 glasses of milk or ten multi-vitamins capsules daily to supply your vitamin D needs. Most of us make about 20,000 units of vitamin D after 20 minutes of summer sun due to UVB conversion of cholesterol.

     Cholesterol must be available in our bodies in amounts sufficient to allow UVB conversion to vitamin D. We are all genetically blessed with a “natural level” of cholesterol. What is natural for one person may be completely inadequate for another. Into this heterogenous pool we dump statins indiscriminately in a misguided attempt to bring everyone’s natural level of cholesterol down to some artificially low level.

    Statins aggravate our already immense, vitamin D deficient state. There is little doubt that the availability of statins drugs these past two decades have made a major contribution to this problem.

    Duane Graveline return to page One of vitamin-D