Vitamin D - Too much Could Be As Bad For You As Too Little

Hi All,

Many of us take vitamin D and for good reasons. This study has identified a risk of overdoing it. Look at the numbers. A serum Vit. D test is simple (25-hydroxy Vitamin D test) and for those of us living in temperate zones with little sun exposure in winter and lots of sun in summer it is a good idea to vary Vit. D3 supplementation according to how much sun you are getting so as not to go out of the "Goldilocks" zone. I get tested after the end of the 2nd darkest month and in the middle of summer.


2 Replies

  • I disagree. Too little is far worse than too much. Dr Michael Holick, who has been studying Vitamin D since the 1960's has only seen one person who "overdosed" on Vitamin D.

  • You need to read the Copenhagen study, and they are talking about

    Serum 25(OH)D from 247 574 ...

    Ultimately the study shows a 'sweet spot' for cardiovascular disease mortality...

    A Reverse J-Shaped Association Between Serum 25-Hydroxyvitamin D and Cardiovascular Disease Mortality: The CopD Study

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