Finally found a simply worded study explaining Vitamin 25D has no impact on 1,25

[Guest guest]

Concerning vitamin D, I finally came across an article that states

some important items very clearly based on actual studies -- instead

of speculative theories. I have been frustrated because I have seen

the same thing stated in many articles -- but it has not been

sufficiently simply stated that a CFIDS mind could understand it.

Source:Vitamin D: importance in the prevention of cancers, type 1

diabetes, heart disease, and osteoporosis, American Journal of

Clinical Nutrition, Vol. 79, No. 3, 362-371, March 2004 The full text

is available at: http://www.ajcn.org/cgi/content/full/79/3/362

" neither increased exposure to sunlight nor increased oral intake of

vitamin D raised blood concentrations of 1,25(OH)2D " (3 studies

cited)

Furthermore, the author states:

" as a person becomes vitamin D-deficient, there is an increase in the

concentration of parathyroid hormone (PTH), which increases the renal

production of 1,25(OH)2D, the circulating concentrations of which

often become normal or even elevated "

So 1,25D increases with Vitamin D deficiency has been established in

medical literature. It seems clear that Vitamin D supplementation

until Vitamin D is at the optimal levels should be done before you

can be sure of meaningful 1,25D levels

* 45-50 ng/ml or 115-128 nmol/l. Mercola, MD

http://www.mercola.com/2002/feb/23/vitamin_d_deficiency.htm

I found it interesting that low levels of Vitamin D may induce a

false elevation of 1,25D levels (even a HIGH reading).

This is what medical science study states and have found to be the

case.