Three and a half minutes and this will tell you all about it. https://www.youtube.com/watch?v=rEgdyd8OC00 Generally "vitamin D 25 hydroxy" unless other problems are suspected. Another very short video. https://www.youtube.com/watch?v=5rEs4o6q_Wc If you really want to dig into it: https://www.youtube.com/watch?v=72SiVOMjHJI And even more info: https://www.youtube.com/results?search_query=ivor+cummins+vitamin+d John
Edited by John Burns 8/13/2020 15:54
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What vitamin D blood test do I ask for tomorrow?
