To get to therapeutic levels of Vitamin D the clinic recommendation is 4000 IUI D3 daily whenever you cannot get full summer sun. Our family doc initially prescribed 2000 IUI.

If anyone has concerns about vitamin deficiencies your doc can run the blood tests to check but remember the lab's norms aren't going to be the same as the therapeutic levels. Generally the majority of docs haven't kept up with the recent research on non-pharma treatments and the recommended levels haven't been updated in eons. I'd be glad to share the target levels we were given if anyone wants them. It made a lot of sense to me that not getting enough vitamins could negatively affect brain function and we have our share of food issues. In addition a number of things can limit the absorption even if someone is eating a stellar diet.

I've been surprised how much affect we have seen from *just* vitamins. I wouldn't have believed it could help so much.