tanTALK - View Single Post - Calcium, vitamin D are critical to stopping bone loss

TED HUTCHINSON · 08-19-2007, 12:39 PM

I don't like to argue with Eileen but People ages 51-70 need 400 IU (international units) of vitamin D each day and folks over age 71 need 600 IU per day. (Some think that even more is better — but that's another column completely). really doesn't add up.

May I suggest that readers listen/watch Robert P. Heaney, M.D. presentation at Contemporary Diagnosis and Treatment of Vitamin D-Related Disorders you may want to use the arrows by the slide preview to fast forward to Heaney's talk Slide 18 is the one you need to study. It shows that Calcium absorption is maximised at 80nmol/L.

Now we know that 400iu raises status by 7-12nmol/L so it is just basic maths to work out roughly the amount of Vit d we need to achieve a minimum of 80nmol/L.

In the UK the average woman has a level around 50nmol/L and usually below 75nmol/L so thinking a mere 400iu uplift will raise the average UK woman into the low breast cancer incidence group is mistaken. It needs to be more like 2000iu and that could as easily be achieved with a couple of short sunbed sessions or an effective strength supplement.

08-19-2007, 12:39 PM	#2 (permalink)
TED HUTCHINSON Join Date: Jul 9 2007 Posts: 15 Rep Power: 0	Re: Calcium, vitamin D are critical to stopping bone loss I don't like to argue with Eileen but People ages 51-70 need 400 IU (international units) of vitamin D each day and folks over age 71 need 600 IU per day. (Some think that even more is better — but that's another column completely). really doesn't add up. May I suggest that readers listen/watch Robert P. Heaney, M.D. presentation at Contemporary Diagnosis and Treatment of Vitamin D-Related Disorders you may want to use the arrows by the slide preview to fast forward to Heaney's talk Slide 18 is the one you need to study. It shows that Calcium absorption is maximised at 80nmol/L. Now we know that 400iu raises status by 7-12nmol/L so it is just basic maths to work out roughly the amount of Vit d we need to achieve a minimum of 80nmol/L. In the UK the average woman has a level around 50nmol/L and usually below 75nmol/L so thinking a mere 400iu uplift will raise the average UK woman into the low breast cancer incidence group is mistaken. It needs to be more like 2000iu and that could as easily be achieved with a couple of short sunbed sessions or an effective strength supplement.