which type of electromagnetic radiation enables the body to make vitamin d?
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Synthesis in the Skin Vitamin D3 is synthesized in human skin from 7-dehydrocholesterol following exposure to ultraviolet B (UVB) radiation with wavelength 290 to 320 nm.
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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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['Folate/vitamin B12. Since these two nutrients work synergistically, Dr. ... ', 'Vitamin D. “Limited sun exposure and restrictive diets that exclude fatty fish or fortified dairy products have led to an epidemic of vitamin D deficiency… ... ', 'Omega-3 fatty acids. ... ', 'Magnesium. ... ', 'Probiotics.']
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The Bottom Line The D3 form is found in fatty animal-sourced foods, such as fish oil and egg yolk. Your skin also produces it in response to sunlight or ultraviolet light. In contrast, vitamin D2 comes from plants. Interestingly, vitamin D3 appears to be more effective at increasing levels of vitamin D in the blood.
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Vitamin D3 is made by your own body when you are exposed to sunlight. It is also found in some foods, including eggs and fatty fish, such as salmon, tuna, and mackerel. In your bloodstream, vitamin D2 and vitamin D3 are changed into a form of vitamin D called 25 hydroxyvitamin D, also known as 25(OH)D.
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Having the right amount of vitamin D, calcium, and phosphorus is important for building and keeping strong bones. Vitamin D is used to treat and prevent bone disorders (such as rickets, osteomalacia). Vitamin D is made by the body when skin is exposed to sunlight.
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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. Vitamin D has many roles in the body and is essential for optimal health (2).
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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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UV radiation is a form of electromagnetic radiation that mainly comes from the sun. There are three types of UV rays: UVA, UVB and UVC rays. UVA rays are the weakest, but they cause skin cells to age faster. UVB rays are a little stronger, and can cause sunburns and skin cancer.
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Radiation at the longer UV wavelengths of 320-400 nm, called UV-A, plays a helpful and essential role in formation of Vitamin D by the skin, and plays a harmful role in that it causes sunburn on human skin and cataracts in our eyes.
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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.
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Carefully extracted from lichen, it provides natural vitamin D in its most bioactive form, cholecalciferol (vitamin D3). It is sourced from a unique species of non-GMO lichen which has the ability to produce vitamin D in the natural D3 form. Vitamin D3 is more easily absorbed and utilized by the body.
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Vitamin D is a nutrient needed for health and to maintain strong bones. Vitamin D aids in the absorption of calcium and phosphorus in our bodies, helps bring calcium and phosphorus to our bones and teeth, and helps regulate how much calcium remains in our blood.
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Vitamin D is completely different than most other vitamins. In fact, it's a steroid hormone produced from cholesterol when your skin is exposed to the sun. For this reason, vitamin D is often referred to as “the sunshine vitamin.”
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When your skin is exposed to sunlight, it produces vitamin D3. For this reason, it is sometimes referred to as the sunshine vitamin. Its strength is also measured in international units. All forms of vitamin D3 are available over-the-counter.
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Vitamin D2 is synthetically made from radiating a compound (ergosterol) from the mold ergot. Vitamin D3 is made commercially and synthetically in a similar way that it is produced intrinsically in human and animal skin when exposed to UVB light.
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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.