[devere]

Perhaps this review article by Cannell and colleague might answer your question. The authors state that latitude is only one of many factors affecting vitamin D creation, and that vitamin D deficiency is common in Miami.

http://www.thorne.com/altmedrev/.fulltext/13/1/6.pdf

Dr Cannell’s email address is listed on the first page of the article.

[texas booster]

I remember this thread when it was hit the wires.

I attend trade shows for educators and am in schools nearly every working day.

I started taking D back then and until I stopped about 4 months ago, was rarely ill. I did get diagnosed with diabetes in January.

So, I now carry D3 supplements with me everywhere I travel and will report back on the efficacy of just adding supplements to my diet.

Thanks for the articles.