Vitamin D3 Bioavailability
My level of Vitamin D is 11.6. My physician wants to prescribe Drisdol (D2) 50,000 IU. After reading your information on Vitamin D2 vs D3, I asked the pharmacist a few questions about D2 bioavailability.
He said that at 50,000 IU of D2 there is better bioavailability by the body. I wonder if they have to give 50,000 IU b/c the body doesn't absorb as much, and if I were to take Vitamin D3
...would I take a lesser IU b/c it is absorbed better (according to your source of information).
Can you clarify what you know about this, and also send me a reference to a few studies that I can see your source of information. Have's there been a particular brand of D3 that has been studied to be effective?
The only symptoms that I suppose could be related to this vit D deficiency is some chronic pain in my neck vertebrae...but I have some disc problems there. I'm not sure if that pain is related to vit D deficiency. I'm surprised my vit D level is so low b/c I don't feel like I experience any of the symptoms you list.