There studies say it is safe to take 10,000 iu a day. I am taking 5,000 iu. Doctors prescribe up to 50,000 iu a week to people.

Trust me, I didn't start taking them without doing some research. At Vit D is only sourced from sunlight I think the liver (kidneys? didn't do boilogy) just gets rid of what it doesn't need. So the worst I can be doing is wasting my money.

I have spent the last 2 winters researching SAD.

I will point out that these stabbing pains don't happen very often, they could be weeks apart. It's just I never see anyone else suddently going "ouch!!" like i do. They are so sharp and quick they make me jump.

Is there no-one on the site that knows about accupuncture?