Paleo Diet and Paleolithic Diet Questions & Answers

Question

2

Just a short question on Vit D dose. In Belgium, the only affordable Vit D is one that comes in ampoules of 25.000 IU (€1 per ampoule). In the winter, I usually take about 2/week or 3 in 2 weeks.

I know that the best way to know is to test my Vit D levels, but I'm not really concerned about this. My question is: does it matter if I take it only 2 times per week instead of daily (meaning on days without sunshine?).

My guess is that it doesn't matter that much, since Vit D is fat soluable and for people spending a lot of time outdoors, they also have clouded and sunny days?

Or am I wrong?

Thanks.

flag	asked Sep 8 2010 at 13:33 Pieter D 11.5k●2●21●50

	Are you sure this is D3 and not D2? – JJ Sep 8 2010 at 14:15
	Yep, cholecalciferol. – Pieter D Sep 8 2010 at 15:09
	Pieter, my doctor recommended these D-cure supplements once a week and my level was 9ng/ml... That being said, why don't you buy this stuff on iHerb? If you pick airmail, you can get 360 capsules with 5K IU of D3 for 20$ including shipping. Besides, the vitamin D you're talking about is made with canola oil, while the one from iHerb is made with olive oil : iherb.com/… – Bruno Feb 15 2012 at 15:54

Stephen-Aegis · Answer 1 · 2010-09-08 13:52:53Z UTC

From Vitamin D Council:

Like most medication, cholecalciferol is certainly toxic in excess, and, like Coumadin, is used as a rodent poison for this purpose. Animal data indicates signs of toxicity can occur with ingestion of 0.5 mg/kg (20,000 IU/kg ), while the oral LD50 (the dose it takes to kill half the animals) for cholecalciferol in dogs is about 88 mg/kg, or 3,520,000 IU/kg. This would be equivalent to a 110-pound adult taking 176,000,000 IU or 440,000 of the 400 unit cholecalciferol capsules.

The standard procedure for people low in D is to give them a huge shot once a week... And as you said, it stores in fat and we use its needed. Those megadoses have been shown to regulate daily levels with a weekly shot, I wouldn't worry about it :)

David Csonka · Answer 2 · 2010-09-08 20:10:33Z UTC

0

One thing to consider is that the human body will naturally taper production of vitamin-D based on quantity of exposure to UV sunlight. As sunlight exposure results in more vitamin-D than is needed, production will drop off and of course melanin will increase skin pigmentation.

This however does not happen with supplemented vitamin-D3.

answered Sep 8 2010 at 20:10

David Csonka
6,827●2●25●58

	Where can I read more on this? – Stephen-Aegis Sep 8 2010 at 22:28
	Stephen: Hollick's seminal paper nature.com/jid/journal/v77/n1/full/5615643a.html – Chris Sep 8 2010 at 23:30

Chris · Answer 3 · 2010-09-08 20:43:33Z UTC

0

Poliquin is all about a bolus dose of vitamin D for deficient individuals. 30k to 100k IU, twice a week.

http://www.charlespoliquin.com/ArticlesMultimedia/Articles/article.aspx?ID=230

edited Sep 8 2010 at 20:43

answered Sep 8 2010 at 20:06

Chris
1,890●5●9

3

Poliquin is also selling it, right along side "lean legs fat burning cream for women" – xjhues Sep 8 2010 at 20:42

Tony · Answer 4 · 2012-02-15 15:22:07Z UTC

What about what time of day to take the vitamin D? Ive been taking it at midday thinking thats when i should be getting sunshine, but Rob Wolfe mentioned in a recent podcast that he takes his later(in evening i think he said), i guess because D created via sun and skin may take time to appear in the bloodstream...

Scottyb · Answer 5 · 2010-09-08 19:28:17Z UTC

-1

Eat some polar bear liver :) (google it)

answered Sep 8 2010 at 19:28

Scottyb
1

1

Oops, that was vitamin A. Sorry! – Scottyb Sep 8 2010 at 19:29

Vitamin D dose and timing?

5 Answers