what is vitamin d in body?
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Vitamin D helps regulate the amount of calcium and phosphate in the body. These nutrients are needed to keep bones, teeth and muscles healthy. A lack of vitamin D can lead to bone deformities such as rickets in children, and bone pain caused by a condition called osteomalacia in adults.
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Some UV radiation is essential to the body as it stimulates the production of vitamin D. Vitamin D has an important function in increasing calcium and phosphorus absorption from food and plays a crucial role in skeletal development, immune function and blood cell formation.
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There are two main kinds of vitamin D—D2 (ergocalciferol) and D3 (cholecalciferol). D2 is found in plant foods, including fungi like mushrooms and yeasts. D3 is only available in animal foods, and it's the type of vitamin D your body makes on its own when it's exposed to UV light.
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Vitamin D3, also known as cholecalciferol is generated in the skin of animals when light energy is absorbed by a precursor molecule 7-dehydrocholesterol. Vitamin D is thus not a true vitamin, because individuals with adequate exposure to sunlight do not require dietary supplementation.
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The recommended form of vitamin D is vitamin D3 or cholecalciferol. This is the natural form of vitamin D that your body makes from sunlight. Supplements are made from the fat of lambs' wool. However, a clinical study reported in 2008 suggested that vitamin D2 works as well as vitamin D3.
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But the sun isn't all bad. Just 10–15 minutes of daily exposure helps manufacture vitamin D throughout the skin. Vitamin D is one of the best vitamins for your skin, along with vitamins C, E, and K. Making sure you get enough vitamins can keep your skin looking healthy and youthful.
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Vitamin D is made by the body when skin is exposed to sunlight. Sunscreen, protective clothing, limited exposure to sunlight, dark skin, and age may prevent getting enough vitamin D from the sun. Folic acid is the man-made form of folate.
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Vitamin D, in the form of 1,25-dihydroxyvitamin D3, helps to regulate several types of cells in the immune system, including monocytes, macrophages, dendritic cells and acti- vated T cells, and it helps prevent autoimmune responses.
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The primary function of vitamin D in the body is to: regulate calcium and phosphorus levels.
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Tests for Vitamin D Deficiency The most accurate way to measure how much vitamin D is in your body is the 25-hydroxy vitamin D blood test. A level of 20 nanograms/milliliter to 50 ng/mL is considered adequate for healthy people. A level less than 12 ng/mL indicates vitamin D deficiency.
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Calcium and Vitamin D are essential nutrients for proper bone health. Vitamin D helps to increase the absorption of calcium, ultimately building stronger bones. It also improves the function of muscles, improving your balance and decreasing the likelihood of falls, which can lead to fractures.
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Vitamin D is a fat-soluble vitamin that plays an important role in calcium homeostasis and bone metabolism. Vitamin D deficiency can lead to osteomalacia and rickets in children and osteomalacia in adults. The fortification of milk with vitamin D in the 1930s was effective in eradicating rickets in the world.
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Vitamin D is sometimes called the “sunshine vitamin” because it's produced in your skin in response to sunlight. It's a fat-soluble vitamin in a family of compounds that includes vitamins D-1, D-2, and D-3. Your body produces vitamin D naturally when it's directly exposed to sunlight.
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Vitamin D is a hormone the kidneys produce that controls blood calcium concentration and impacts the immune system. It is also known as calcitriol, ergocalciferol, calcidiol and cholecalciferol.
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Vitamin D sufficiency prevents rickets in children and osteomalacia in adults [1]. Together with calcium, vitamin D also helps protect older adults from osteoporosis. Vitamin D has other roles in the body, including modulation of cell growth, neuromuscular and immune function, and reduction of inflammation [1,3,4].
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A human body produces vitamin D as a response to sun exposure. A person can also boost their vitamin D intake through certain foods or supplements. Vitamin D is essential for several reasons, including maintaining healthy bones and teeth.