Coastt wrote:
Do your research before taking a large dose of any one vitamin. Certain vitamins can be toxic. Excess A,D,E, and K, is stored in fat tissue and organs.
It is possible to take too much Vitamin D -- Vitamin D toxicity is a serious health risk but is quite rare.
If you watch Dr Holick's lecture on Vitamin D that I posted a few minutes ago, he mentions a case of Vitamin D toxicity. In that case, it was discovered that the manufacturer of the Vitamin D the man was taking contained many times the amount of Vitamin D that it was suppsed to contain. Instead of taking a few thousand IU a day, the man was taking something like a hundred thousand or more. (I don't remember the numbers mentioned in the talk.)
The only other Vitamin D toxicity case that I have read about was very similar to that. The manufacturer made a big mistake in manufacturing and was putting in far more Vitamin D in the tables than was reasonable.
So while you might possibly be able to get toxic amounts of Vitamin D from the tablets, it appears quite unlikely that you would do so.
I take 4,000 IU of Vitamin D a day in the winter time. In the summer when I'm able to go outside in the mid day and be exposed to UVB from the sun normally, I don't take Vitamin D.