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Overview of Vitamin D3
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Cholecalciferol (D3) is a pro-hormone synthesized in human skin upon exposure to sunlight then metabolized in the liver and kidney to the biologically active form. A single gel cap of this product contains approximately the same amount - of the same human hormone - a light skinned person would make if exposed to summer sun for a few hours.
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Low levels of vitamin D are associated with weak bones, fractures, muscle weakness, muscle aches and falls. Recent evidence also indicates an increase in the frequency of some autoimmune diseases and malignancies.
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Adequate blood levels of vitamin D - in conjunction with calcium - are required for bone health -- especially to prevent osteoporosis – and muscle action.
Who should take supplemental Vitamin D3?
Sun exposure, diet, and aging affect vitamin D production and metabolism. Older adults and those not regularly in the sun need vitamin D supplementation. Pre and post menopausal women are especially at risk, but younger persons and men are not immune to the problems caused by low vitamin D levels.
Who should NOT take supplemental D3?
Persons with some malignancies, kidney stones, and calcium or parathyroid disorders should take vitamin D only under the supervision of a physician.
Persons with metabolic, liver, bone, kidney, and digestive diseases and children, pregnant women or persons unsure of their health may need vitamin D3 but should consult a physician before using this or any nonprescription supplement.
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