what is the difference between vitamin d and vitamin 3d?
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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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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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Abstract. Vitamin D is a hormone, not a vitamin. The skin is responsible for producing vitamin D. During exposure to sunlight, ultraviolet radiation penetrates into the epidermis and photolyzes provitamin D3 to previtamin D3.
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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. However, you'll want to chat with your doctor to find what's right for you.
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Take vitamin D by mouth as directed. Vitamin D is best absorbed when taken after a meal but may be taken with or without food.
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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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Getting the right vitamins 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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 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.
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Highlights. Vitamin D is vital for babies growth and development* 400 IU of pure vitamin D3 in just one liquid drop, offering an easy alternative to large eye droppers. Just one drop per day on mother's breast before feeding, added to a bottle, or on a clean surface, such as a clean fingertip.
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['Garden of Life Vitamin Code RAW D3.', 'Solaray Vitamin D3.', "Nature's Way Vitamin D3."]
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Vitamin D helps your body absorb calcium. Vitamin D2 is used to treat hypoparathyroidism (decreased functioning of the parathyroid glands). Vitamin D2 is also used to treat rickets (softening of the bones caused by vitamin D deficiency) or low levels of phosphate in the blood (hypophosphatemia).
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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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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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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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Vitamin D is a fat-soluble vitamin, meaning that it does not dissolve in water and is absorbed best in your bloodstream when paired with high-fat foods. For this reason, it's recommended to take vitamin D supplements with a meal to enhance absorption.
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['Pure Encapsulations D3 10,000 IU. For people with a severe vitamin D deficiency, taking a high dose supplement is necessary. ... ', "NOW Foods' D3 10,000 IU. NOW Foods is another excellent supplement brand that makes high dose vitamin D supplements."]
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It is necessary to note that the term vitamin D refers to any compound with the biological activity of 1,25-dihydroxyvitamin D and encompasses both vitamin D3 (cholecalciferol, typical of animal life) and ergocalciferol (vitamin D2, typical of vegetal life).