The current issue of Consumer Reports has a page on Vitamin D. The 
only Vitamin D is listed by price. Trader Joe's is first. Now is 
second. They state that the maximum safe daily per the Institue of 
Medicine is 4,000 units.

There is a list of Vit D + Calcium that exceed the amount of lead per 
California. Nine out of 12 tested exceeded.

I have put a scan on the web. I will delete it in a few days. Save a 
copy if you want to be able to refer to it later.

http://paleodiet.com/CR-Vitamin-D.pdf

Don.