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saveourbones.com/the-huge-difference-between-vitamins-d3-and-d2-and-why-you...

A report published in The American Journal of Nutrition points out the very clear difference between Vitamin D3 and Vitamin D2, the latter, the “form of vitamin D used in major preparations of prescriptions in North America.” 1 Vitamin D2 is in fact not the bioavailable equivalent of D3.

healthfully.com/70011-difference-between-vitamin-d2-.html

The two forms of vitamin D, D2 and D3, differ slightly in their structure and in their sources. Vitamin D3 is more effective than vitamin D2 for increasing your blood levels of vitamin D, according to a meta-analysis published in "The American Journal of Clinical Nutrition" in May 2012. You need vitamin D for absorbing calcium, forming strong bones and proper immune function.

www.healthline.com/nutrition/vitamin-d2-vs-d3

Vitamin D is more than just one vitamin. It’s a family of nutrients that shares similarities in chemical structure. In your diet, the most commonly found members are vitamin D2 and D3. While ...

www.globalhealingcenter.com/natural-health/vitamin-d3-vs-vitamin-d2

Perhaps you've looked into supplementing your own vitamin D needs but were stonewalled by the options; specifically, vitamin D3 vs. vitamin D2. The confusion between the two is very common; let's see if we can clear it up. D2 vs. D3 - Is There a Difference? There are two forms of vitamin D: vitamin D2 and vitamin D3.

www.betterbones.com/.../what-is-the-difference-between-vitamin-d2-and-vitamin-d3

Vitamin D3 is produced in the skin with sunlight exposure. Vitamin D2, known as ergocalciferol, is a compound produced by irradiating yeast with ultraviolet light. A substantial body of research documents that vitamin D3 is the preferable form and researchers clearly recommend its use. Vitamin D3 has been found to be at least three times as ...

www.medscape.com/viewarticle/746941

Although much attention has been given to vitamin D intake, most consensus statements do not delineate the differences between the 2 major oral formulations: vitamin D 2 (ergocalciferol) and ...

www.diffen.com/difference/Vitamin_D2_vs_Vitamin_D3

The structural difference between vitamin D2 and vitamin D3 is in their side chains. The side chain of D2 contains a double bond between carbons 22 and 23, and a methyl group on carbon 24. Vitamin D2 (made from ergosterol) is produced by invertebrates, fungus and plants in response to UV irradiation.

articles.mercola.com/sites/articles/archive/2017/07/17/vitamin-d3-versus-d2.aspx

Recommendations for Vitamin D Outdated and Unsafe. Here's where it gets problematic: Several governments around the world, including the U.S. National Institutes of Health, assert there's no difference between vitamins D2 and D3 and that interchanging the two makes no difference whatsoever in your body's levels.

www.verywellfit.com/which-form-of-vitamin-d-is-better-d2-or-d3-2507730

Whether you take vitamin D2 or vitamin D3, the process will be the same. The only difference is that vitamin D3 tends to bind more effectively than vitamin D2. What this means is that vitamin D3 supplements are more potent and require lower doses to achieve the same health benefits.

www.sharecare.com/health/vitamin-d/what-difference-between-vitamind2-d3

Vitamin D is a group of fat-soluble vitamins. There are 2 major forms of Vitamin D which are vitamin D2 also known as ergocalciferol and vitamin D3 which is also known as cholecalciferol. Both D2 and D3 are in the same structural class and are very similar compounds. Vitamin D3 is produced in your skin naturally when it is exposed to sunlight.