what is difference between vitamin d d2 and d3?
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Vitamin D3 Comes from Animals, Vitamin D2 from Plants The two forms of vitamin D differ depending on their food sources. Vitamin D3 is only found in animal-sourced foods, whereas D2 mainly comes from plant sources and fortified foods. Since vitamin D2 is cheaper to produce, it's the most common form in fortified foods.
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Supplements. Vitamin D supplements come as tablets, capsules or drops. Their strength is measured in both micrograms (µg or mcg) and International Units (IU). Look for those that provide vitamin D3 (cholecalciferol) rather than vitamin D2 (ergocalciferol).
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Vitamin D and Inorganic Elements. One point of note is that adequate 25(OH)D3 is associated with improved absorption of essential elements including calcium, magnesium, iron, phosphate, zinc, and copper [12].
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Vitamin D2 (ergocalciferol) is produced by invertebrates, some plants, and fungi. Biological production of D2 is stimulated by ultraviolet light. Vitamin D3 (cholecalciferol) is synthesized in the skin by the reaction of 7-dehydrocholesterol with UVB radiation, present in sunlight with an UV index of three or more.
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Vitamin D3, or cholecalciferol, is one of the forms of vitamin D. Both D2 and D3 need to be converted by the liver and then by the kidneys into the main form of vitamin D that circulates in your body.
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Vitamin D3 Is More Effective at Improving Vitamin D Status Vitamin D2 and D3 are not equal when it comes to raising your vitamin D status. Both are effectively absorbed into the bloodstream. However, the liver metabolizes them differently.
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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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Vitamins are substances that your body needs to grow and develop normally. Vitamin D helps your body absorb calcium. Calcium is one of the main building blocks of bone. A lack of vitamin D can lead to bone diseases such as osteoporosis or rickets. Vitamin D also has a role in your nerve, muscle, and immune systems.
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Vitamin D (ergocalciferol-D2, cholecalciferol-D3, alfacalcidol) is a fat-soluble vitamin that helps your body absorb calcium and phosphorus. Having the right amount of vitamin D, calcium, and phosphorus is important for building and keeping strong bones.
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Infant: These two formulas are virtually IDENTICAL except for the following differences: 1) The “Infant” has 60 IU of vitamin D and the “Newborn” has 75 IU. This difference is practically nothing – both are more than enough vitamin D for a new baby.
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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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Vitamin D2 and D3 50000 IU are available with a prescription. Vitamin D2 and D3 400 – 5000 IU are available over-the-counter (OTC).
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Calcium and vitamin D work together to protect your bones—calcium helps build and maintain bones, while vitamin D helps your body effectively absorb calcium. So even if you're taking in enough calcium, it could be going to waste if you're deficient in vitamin D.
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There are two major types of vitamin D1,2: Vitamin D2 (ergocalciferol) – which is synthesized by plants and is not produced by the human body. Vitamin D3 (cholecalciferol) – which is made in large quantities in the skin when sunlight strikes bare skin.
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This test measures the level of vitamin D in the blood. Two forms of vitamin D can be measured in the blood, 25-hydroxyvitamin D and 1,25-dihydroxyvitamin D. The 25-hydroxyvitamin D is the major form found in the blood and is the relatively inactive precursor to the active hormone, 1,25-dihydroxyvitamin D.
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Taking vitamin D in forms known as dihydrotachysterol, calcitriol, or ergocalciferol by mouth is effective for increasing calcium blood levels in people with low parathyroid hormone levels. Softening of the bones (osteomalacia). Taking vitamin D3 is effective for treating softening of the bones.