I think the research PDF on the primal-d site is slightly wrong, the graph says that oral vitamin D intake went down by 7%, which isn't true. The 7% reduction group didn't take any vitamin D supplement (transdermal or otherwise). They applied aloe gel to their skin.
Took me a while to work out...
Hi Triceptor,
quick question about the research PDF on the site. I had a look at the research by Mir Sadat-Ali which you quote on the PDF, and the research is just looking at vitamin D absorption through the skin, and doesn't test the oral absorption. Where do the figures for the -7% for the...
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