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Most people take vitamins expecting some sort of health boost. ... Vitamin D is known as the sunshine vitamin because the body can make it in a process that involves the sun hitting uncovered skin ...
Vitamin D toxicity, or hypervitaminosis D, is the toxic state of an excess of vitamin D. The normal range for blood concentration of 25-hydroxyvitamin D in adults is 20 to 50 nanograms per milliliter (ng/mL).
Specific medical names of the different conditions are derived from the given vitamin involved: an excess of vitamin A, for example, is called hypervitaminosis A. Hypervitaminoses are primarily caused by fat-soluble vitamins (D and A), as these are stored by the body for longer than the water-soluble vitamins. [1]
Unlike the other twelve vitamins, vitamin D is only conditionally essential - in a preindustrial society people had adequate exposure to sunlight and the vitamin was a hormone, as the primary natural source of vitamin D was the synthesis of cholecalciferol in the lower layers of the skin’s epidermis, triggered by a photochemical reaction with ...
Vitamin D is an important nutrient that's top of mind for many lately, and that's good news since most people in the United States don't consume enough of it, according to the National Institutes ...
Vitamin D is a fat soluble vitamin, so it's important to know the best time of day to take it. Here you'll learn the best advice from experts. Skip to main content. 24/7 Help. For premium support ...
How To Get More Vitamin D. Most people can get vitamin D from food sources like cod liver oil, trout, salmon, and mushrooms, says Keri Gans, RD, author of The Small Change Diet. But if you have a ...
For a healthy individual, if calcium levels are high, the kidneys will decrease its production of calcitriol (active vitamin D) by reducing the hydroxylation of calcidiol (inactive vitamin D); lower calcitriol levels means a lower rate of calcium absorption in the small intestine, which eventually offsets the elevated calcium levels. [10]