OTP: Vitamin D

From a.s.c.p.

NO ONE should be using D2 Ergocalciferol
EVERYONE should be using D3 Cholecalciferol.
The reasons why are set out here
http://www.ajcn.org/cgi/content/abstract/84/4/694
The Case Against D2 as a Vitamin Supplement.

Basically it's not as effective, packs only about a quarter the punch
particularly for older people. Also it doesn't last as long in the system.

You have to understand that despite the official RDA, your body uses
4000iu/d approx http://www.ajcn.org/cgi/content/full/77/1/204

To raise your Vit D status 8-12nmol/L takes 400iu

So in Winter when/if (depending on latitude) there is no sun you will
need to use 4000iu give or take food inputs (possibly 300iu) and other
supplements (possibly 200iu) If you use the cheap 5000iu capsules from
one of the sources listed on The Vitamin D Council Website then it's
fine to take 2-3 alternate weeks to average 2000iu say in the Summer
(when you'll get some from sunshine) and 5-6 alternate weeks to
average 4000iu/d

Be aware that the proposed new safe upper limit is 10,000iu/d
http://www.ajcn.org/cgi/content/abstract/85/1/6 Risk assessment for
vitamin D and reading that paper makes it clear that in fact this is
allowing a very generous safety margin as it would take a daily input
of 40,000iu to actually cause harm,

Wonder how much your body produces in Northern California sitting in the sun
from 7 to 9 am while playing with the dog?

Jo
"california_chief" <Fire_Chief@Jamacha_Junction_FD.ca.us> wrote in message
news:2%Dfi.191098$nh4.30197@newsfe20.lga...
> From a.s.c.p.
>
> NO ONE should be using D2 Ergocalciferol
> EVERYONE should be using D3 Cholecalciferol.
> The reasons why are set out here
> http://www.ajcn.org/cgi/content/abstract/84/4/694
> The Case Against D2 as a Vitamin Supplement.
>
> Basically it's not as effective, packs only about a quarter the punch
> particularly for older people. Also it doesn't last as long in the system.
>
> You have to understand that despite the official RDA, your body uses
> 4000iu/d approx http://www.ajcn.org/cgi/content/full/77/1/204
>
> To raise your Vit D status 8-12nmol/L takes 400iu
>
> So in Winter when/if (depending on latitude) there is no sun you will
> need to use 4000iu give or take food inputs (possibly 300iu) and other
> supplements (possibly 200iu) If you use the cheap 5000iu capsules from
> one of the sources listed on The Vitamin D Council Website then it's
> fine to take 2-3 alternate weeks to average 2000iu say in the Summer
> (when you'll get some from sunshine) and 5-6 alternate weeks to
> average 4000iu/d
>
> Be aware that the proposed new safe upper limit is 10,000iu/d
> http://www.ajcn.org/cgi/content/abstract/85/1/6 Risk assessment for
> vitamin D and reading that paper makes it clear that in fact this is
> allowing a very generous safety margin as it would take a daily input
> of 40,000iu to actually cause harm,
>
>

"jofirey" <jofirey@hotmail.com> wrote in message
news:5e8lr2F37gcgjU1@mid.individual.net...
> Wonder how much your body produces in Northern California sitting in the
> sun from 7 to 9 am while playing with the dog?
>
> Jo

LOLOL Welllll, its not too much. LOL

SomBodyElse

I take one pill .5 mcg calciferol daily and 50,000 units Vitamin D twice
a week. Yes that is 50,000! This for hypoparathyroidism secondary to
kidney disease. When I asked my endo doc if that wasn't an excessive
amount, she said she had patients on even higher dosages. Going for a
bone scan in August so hoping that it is as good or better than the last
one.

Ann