By mistake, Paul responded to the forum announcement about new posts, instead of in the thread.

Paul writes 14-03-2012 15:40:

Doctors need to take care about vitamin D usage with patients with kidney disease. I don't know if your particular condition is a concern - you will need to investigate. I do know that some patients with kidney disease can be made worse by vitamin D and that it can cause kidney damage that is permanent. You need to investigate it.