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1000 IU of vitamin D (per kg) can indeed be toxic – 1947

There were many studies in the 1940’s stating that
   1000 IU of vitamin D per kilogram of body weight was toxic.

The average weight of an adult was approximately 70 kg, so yes, I agree, 70,000 IU of vitamin D can be toxic.
I had often wondered why doctors had been told that 1,000 or 2,000 IU of vitamin D was toxic.
My guess is that the old message was trimmed to 1,000 IU of vitamin D is toxic,
Note in the clipping belows that even 35 X higher was sometimes not toxic.

 Download the 1947 PDF from VitaminDWiki

Here is the actual text from the 1947 article


See also VitaminDWiki

Note: 1000 IU per kg IS NOT toxic if you drink a lot of water, minimize Calcum, and take the cofactors

Attached files

ID Name Comment Uploaded Size Downloads
2559 Toxic 1000.jpg admin 06 Jun, 2013 22:18 54.87 Kb 2066
2558 Hypervitaminosis 1948.pdf PDF admin 06 Jun, 2013 22:15 1.69 Mb 1793