Posted by Netch on February 29, 2008, at 6:12:49
In reply to Re: The Vitamin D Pandemic and its Health Consequences, posted by bleauberry on February 28, 2008, at 18:25:53
I get the feeling there is a paradigm shift going on right now when it comes to vitamin D and toxicity. Science is beginning to understand that vitamin D is not as toxic as they once believed.
But it's a sensitive topic and I think Michael Holick also suffered from this when he got sacked.Strange enought I do not tolerate fish liver oil very well but I seem to tolerate synthetic vitamin D3 much better. Right now I'm testing 2000 IU of vitamin D3.
Safe upper limit is considered to be 2000 IU but now some claim upper limit to be anything from 3800 IU (lowest dose with adverse effect) to 10 000 IU (maximum endogenous production of vitamin D3 from sun exposure)
"All of the reports of vitamin D toxicity showing the convincing evidence of hypercalcemia involve serum 25(OH)D concentrations well above 200 nmol/L (Table 5), which requires a daily intake of 1000 µg (40000 IU), and which could thus be conservatively considered the LOAEL. "http://www.ajcn.org/cgi/content/full/69/5/842
/Netch
poster:Netch
thread:814926
URL: http://www.dr-bob.org/babble/alter/20080110/msgs/815319.html