Originally Posted by mrsD (Post 765120)

The D used by doctors on RX is antequated... D2 and does not work much at all.

D3 OTC is what you will want. The general ratio for increasing is 1000IU D3 daily for every 10 points you need to raise (US units).

Your target should be 50. (my doctor wants me at 70!).

I was taking 5000 units a day 8mos out of the year (I am outside in summer)...and I tested only at 43. Should have been a bit higher...but it was still good compared to other people posting all over the boards. I have seen one fellow at PD here who tested at 3 ...:yikes:

Here is a thread with the newest research and medical videos:

http://neurotalk.psychcentral.com/thread92116.html

Originally Posted by mrsD (Post 765137)

Please read the link I gave you... new studies show D2 is about 87% LESS effective than D3.

Doctors have not received this info yet. Just take more D3 daily to make up the difference. 5000IU may raise you enough daily with D3.

It takes about 3 months to work. And if you are low in magnesium even the D3 may not raise you well. Please look at that thread I gave you carefully...because there are details there to help you. Otherwise you take the D2 and fail and wait longer for D3 change to work for you. It is your choice.

Originally Posted by mrsD (Post 765141)

The 2000IU of D3 may raise you 20 pts. That will still put you low.

The D2, is not active in humans. D2 is made from plants.

Doctors don't know better, because their reference books are written by old doctors, who only know the RX form...which is over 40 yrs old.

If you use 5000 IU D3 daily instead of D2 at all you may raise close to 50 points. That D2 will not do much for you. Just because it is a "big sounding dose" doesn't mean it will work for you. I have a link to a study at the end of that thread.

Some people don't raise quickly... this has to due with other cofactors not being present like magnesium, or due to being overweight carrying alot of "fat"...where the D goes.


from http://www.vitamindcouncil.org/