what is the difference between vitamin and d3?
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There are two main forms of vitamin D, these are ergocalciferol (D2), which is the form produced by plants when exposed to UV light, and cholecalciferol (D3) the biologically active form produced in humans and animals when skin is exposed to sunlight.
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Vitamin D is not one chemical but many. The natural type is produced in the skin from a universally present form of cholesterol, 7-dehydrocholesterol. Sunlight is the key: Its ultraviolet B (UVB) energy converts the precursor to vitamin D3.
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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 is actually a hormone rather than a vitamin; it is required to absorb calcium from the gut into the bloodstream. Vitamin D is mostly produced in the skin in response to sunlight and is also absorbed from food eaten (about 10% of vitamin D is absorbed this way) as part of a healthy balanced diet.
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Cholecalciferol is vitamin D3. Vitamin D helps your body absorb calcium. Folic acid is vitamin B9, or folate. Vitamin B9 helps your body produce and maintain new cells.
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Vitamin D is available as both prescription and over-the-counter products. The prescription products are only available as vitamin D2, also known as ergocalciferol. Over-the-counter (OTC) products may be available as either vitamin D3, also known as cholecalciferol, or vitamin D2.
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Vitamin D is best absorbed when taken after a meal but may be taken with or without food. Alfacalcidol is usually taken with food.
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['Garden of Life Vitamin Code RAW D3.', 'Solaray Vitamin D3.', "Nature's Way Vitamin D3."]
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Vitamin D2 is ergocalciferol and comes from plant-based sources. Vitamin D3 is cholecalciferol and comes from animal-based sources. Both supplements are processed in the body by the liver to 25-hydroxyvitamin D, though vitamin D3 is thought to provide higher levels of 25D.
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Vitamin D3 is integral in regulating mood, combating mental health disorders, and optimal cognitive function. FIGHTS ANEMIA, & HELPS IN THE PRODUCTION OF HEALTHY BLOOD CELLS & DNA – Vitamin B12 is a nutrient that helps keep the body's nerve and blood cells healthy and helps make DNA, the genetic material in all cells.
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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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Vitamin D2 and D3 are both widely used vitamin D supplements but are not the same. Vitamin D2 is ergocalciferol and comes from plant-based sources. Vitamin D3 is cholecalciferol and comes from animal-based sources.
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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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In people whose 25-hydroxyvitamin D (25[OH]D) is <12 ng/mL (30 nmol/L), treatment usually includes 50,000 international units (1250 micrograms) of vitamin D2 or D3 by mouth once or more per week for six to eight weeks, and then 800 to 1000 international units (20 to 25 micrograms), or more, of vitamin D3 daily ...
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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.
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There are three ways to improve the amount of vitamin D in your system. Simply adding an over-the-counter vitamin D supplement can make improvements in just three to four months' time. Vitamin D with a strength of 2000 international units daily is the recommended dose for most adults.
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 There's good reason why vitamin D is called “the sunshine vitamin.” When your skin is exposed to sunlight, it makes vitamin D from cholesterol. The sun's ultraviolet B (UVB) rays hit cholesterol in the skin cells, providing the energy for vitamin D synthesis to occur.