Ok, I looked at the links. Thanks for posting these. It looks like even 30 is deficient. On the sunshine...just how much SKIN needs to be exposed. I don't want to traumatize any passers by. The man said 10,000Units for 15 minutes of exposure....is that stark naked or maybe 25% exposed?

Other question: I have cholecalficerol here....I remember you posting what you thought was best...is this one OK? Then the dose, really, I am quite deficient....I would expect rather than 4000U, I should like do the 8000units...then there is the issue of absorption. If I am not absorbing, then my Vit. D level will likely stay low, then what? They won't give me shots unless I am below 20.

Also, if Vit D is made primarily by sun exposure....how come so many kids in developing countries have rickets, when those kids are outdoors all the time?

Anyway, I am sure my bone is affected, no doubt....is it possible that some people have a higher need for Vit D? This kidney issue likely is affecting the D level.

Thanks for the posts...and given both my gmother and mother had dementia and likely LOW vit. d, I will take my chances and TAKE the vit. d.