the doctor
Retired 2010
Re: Cytokine Storm & Vitamin D relationship?
Re: Cytokine Storm & Vitamin D relationship?
The product used by Dr. Heaney etal was colecalciferol (vitamin D3) not ergocalciferol (vitamin D2). The two are not the same.
There are several concerns I have about vitamin D3. First, if given in excess of physiologic needs, can it be stored?
Second, what is the metabolism and fate of orally administered vitamin D3? For instance, how much of the orally administered dose of D3 is absorbed by the gut?
Of that absorbed, what proportion is converted into 25 OH vit D3 and how much is metabolized to inactive products destined for excretion and as above, how much is stored?
I have the same questions for ergocalciferol, vitamin D2.
I have sent Dr. Heaney an invitation to join this discussion. I hope he will have the time to do so. He is an international authority on this topic and an excellent teacher.
Grattan Woodson, MD
Re: Cytokine Storm & Vitamin D relationship?
You can get serum 25(OH)D tested for $40 by ZRT Labs through www.grassrootshealth.org
As for 10,000 IU/day, I suggest you look at the Heaney et al. paper to get an idea of the replenishment rate. It would probably take you less than 3 months to fill the tank.
The product used by Dr. Heaney etal was colecalciferol (vitamin D3) not ergocalciferol (vitamin D2). The two are not the same.
There are several concerns I have about vitamin D3. First, if given in excess of physiologic needs, can it be stored?
Second, what is the metabolism and fate of orally administered vitamin D3? For instance, how much of the orally administered dose of D3 is absorbed by the gut?
Of that absorbed, what proportion is converted into 25 OH vit D3 and how much is metabolized to inactive products destined for excretion and as above, how much is stored?
I have the same questions for ergocalciferol, vitamin D2.
I have sent Dr. Heaney an invitation to join this discussion. I hope he will have the time to do so. He is an international authority on this topic and an excellent teacher.
Grattan Woodson, MD