Information on the latest vitamin D news and research.
Find out more information on deficiency, supplementation, sun exposure, and how vitamin D relates to your health.
Posted by IAW | 1 year, 4 months ago
Hi there, I have some questions about the accuracy of a recent 25(OH)D that I am hoping someone can help me out with. I just received my lab results for a 25(OH)D test, and it indicates that my serum concentration is 39 ng/ml. I am highly convinced that it should be lower than this, as I have been experiencing certain symptoms for years that I strongly believe are related to a vitamin D deficiency. Granted, I realize 39 ng/ml is still considered somewhat low by Vitamin D Council standards, but it is nonetheless higher than I was expecting it to be. Because I took high dose (~10,000 IU) vitamin D supplements daily for two days prior to the test, I am wondering if this can affect the test outcome. To be clear, I took ~10,000 IU for two days, then took one day off from any vitamin D supplementation, then the next day I was tested. That was yesterday and I just received my test results today (which, as a side note, seems awfully fast…). Does anyone know how quickly a high dose of vitamin D can affect serum concentration, especially as it relates to the 25(OH)D lab test? From everything I've read about this subject, it sounds like it can take *months* for serum levels to increase in response to supplementation, and so I am leaning towards believing that these supplements likely did not affect my lab results in any significant way. But I just want to be sure nonetheless. Thanks so much for taking the time to read this, and thanks in advance for any feedback on my question!
Thank you so much for the response! I did not see that someone else recently posted a similar question, and so I do apologize for the repetition. I am new to using this website and so am not yet too …
Posted by Anonymous | 1 year, 4 months ago
Posted by IAW | 1 year, 11 months ago
It's a damn disgrace that you charge a fee for readers to get information about Vitamn D. Shame on you.
There is a lot of information on this website that is for free! Most of it has been brought to you by people like me that paid a $50.00 fee for a one year membership. This membership fee and also don…
Posted by IAW | 1 year, 9 months ago