Is The Vitamin D Pathway Different Between Taking A Supplement

The text is discussing the different sources and methods of obtaining vitamin D, a hormone that is important for human health. It explains that solar ultraviolet radiation and vitamin D supplementation are the two main sources of vitamin D for those living in northern latitudes. Sunlight is necessary for the conversion of 7-dehydrocholesterol in the skin into previtamin D3, which then isomerizes into vitamin D3. Studies have shown that exposure to UVB radiation is equally or more effective in increasing vitamin D levels compared to taking vitamin D supplements. Though vitamin D can be obtained from diet and supplements, sunlight is still considered the primary source. There are also claims that regular sun exposure is necessary for maintaining healthy vitamin D levels. Overall, the text highlights the importance of sunlight for obtaining vitamin D and the various ways in which it can be obtained.

The vitamin D pathway differs between taking a supplement and receiving ultraviolet B (UVB) radiation. When exposed to UVB radiation, the skin undergoes a process in which 7-dehydrocholesterol is converted into previtamin D3 and then isomerizes into vitamin D3. This is the natural way the body produces vitamin D upon exposure to sunlight. On the other hand, taking a vitamin D supplement involves the ingestion of a form of vitamin D, which is then processed and utilized by the body through different metabolic pathways. Therefore, the pathways for obtaining vitamin D through UVB radiation and supplementation are distinct.

IJERPH | Free Full-Text | Can Optimum Solar Radiation Exposure or ...Metabolites | Free Full-Text | Vitamin D Sources, Metabolism, and ...

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