Big Pharma and Vitamin D

[corpus callosum]

For a Caucasian they say that 15 minutes of decent sunlight exposure/day is enough to provide the amount of vitamin D required per day.

Its important to be aware that Vitamin D actually comprises of Vit D3 ie CHOLECALCIFEROL and Vit D2 ie ERGOCALCIFEROL; replacement therapy usually consists of D3.

And yes, 1mcg of Vitamin D3=40iu.

 

[jamie]

^ so does that mean that people taking supplements are not getting the full spectrum of what is concidered "Vitamin D" if they are only taking D3?

How do they get away with calling that vitamin D if that is the case?

 

[corpus callosum]

^^Not really; when you buy a supplement its good to know which of the 2 you're getting because the term 'Vitamin D' in commercial preps could be either D2 or D3:

1.Vit D3 is made by the action of UV on the skin; D2 is not synthesised by humans hence D3 is more 'natural';

2.D3 binds the receptors more strongly than D2, so you need higher blood levels of D2 to do the same job and this could have implications for toxicity;

3.D3 is more stable than D2 and has a longer shelf-life;

4.Most trials have been done with D3;

5.D3 also has a longer half-life than D2.

So, fans of OTC vitamin D, go for D3 if given the choice-or at least question the vendor if the label simply says 'Vitamin D' so you know which you are getting.

 

[jamie]

ahhh okay..so what I get out of that is that D2 is not really vitamin D at all. Is this D2 only really found to be used as vitamin D in synthetic supplements? Could you not in reality just assume that the true vitamin D is the D3 then if that is what our body actauly produces as the D vitamine? I am sort of confused as to how they come to the conclusion that they can market something as vitamin D if it is not in reality vitamin D?

Is this sort of like cyanocobalamin vs methylcobalamin? I mean cyanocobalamin is not really B12(as in the natural form of B12 the way the human body uses it) as I understand it, yet it is cheaper to manufacture it compared to methylcolalamine so many companies sell the cyanocobalamin as B12 instead..and from what I read cyanocobalamin has actaully caused problems such as blindness when given to patients as IV injection in larger doses..whereas that problem does not occure with methylcobalamin..

 

[Shaolin]

Why take vitamin D pills when all you need to produce vitamin D is to expose your skin to sun? This is just big pharma trying to be even bigger pharma, if you ask me...

Winter and "your sun ain't my sun" meaning there are multiple factors involved such as latitude, exposure surface, time of exposure (day/hour), ...

Calculator and notes.

6 and a half months of supplementations (5K per day) costs you 9$ so not much money there in my opinion.

Global:

My math

1000 micrograms = 1 milligram,

1mcg 40 UI
10 400
100 4000
1000 40000

Why would this be wrong ? The original post mentiones doses in UI not miligrams and I haven't seen supplements (D3) being in miligrams. Link us ?

 

[corpus callosum]

ahhh okay..so what I get out of that is that D2 is not really vitamin D at all. Is this D2 only really found to be used as vitamin D in synthetic supplements? Could you not in reality just assume that the true vitamin D is the D3 then if that is what our body actauly produces as the D vitamine? I am sort of confused as to how they come to the conclusion that they can market something as vitamin D if it is not in reality vitamin D?

Is this sort of like cyanocobalamin vs methylcobalamin? I mean cyanocobalamin is not really B12(as in the natural form of B12 the way the human body uses it) as I understand it, yet it is cheaper to manufacture it compared to methylcolalamine so many companies sell the cyanocobalamin as B12 instead..and from what I read cyanocobalamin has actaully caused problems such as blindness when given to patients as IV injection in larger doses..whereas that problem does not occure with methylcobalamin..

D2 is derived from a yeast and does work in humans but is in some ways inferior to D3 which is the natural version.Both are regarded as legit Vitamin D but the differences between the two are worth knowing about.

There are similarities Frac with B12 as you mention.To complicate things further, B12 is often given as an IM injection and the prep used is HYDROXOCOBALAMIN!:roll:

 

[joedirt]

^ I agree. I mean we never needed them before we had them. If you eat the way humans are designed to eat and spent time outdoors I dont think you should need vitamine D supplents..unless maybe you live in the arctic..I don't really think people evolved to live in the arctic so there might be some problems there with vitamine D either way with like months of darkness and no sunlight.

This is just like the RDA for vitamin C. It is ridiculous. Chimps get like 10g a day sometimes with a diet leaning towards fruitarian..when I see 100 or even 500mg vitamin C supplements I think deficiency. Even 1g of vitamin C is not enough if that is how you are trying to get the stuff. People need to learn what real food is about. The RDA for vitamin C is so low that people just cant be living in full health with such low amounts. The RDA is like the bare minimum needed to get by.

You can get liquid Vitamin D that you can take Sublingualy. I find it works the best by far.

Also even drugs that aren't 'orally' bio available are usually orally bio available to a degree.

 

[joedirt]

For a Caucasian they say that 15 minutes of decent sunlight exposure/day is enough to provide the amount of vitamin D required per day.

Its important to be aware that Vitamin D actually comprises of Vit D3 ie CHOLECALCIFEROL and Vit D2 ie ERGOCALCIFEROL; replacement therapy usually consists of D3.

And yes, 1mcg of Vitamin D3=40iu.

The also say that in the places as far north as Boston you can't make any Vitamin D for about 5 months out of the year because the sun's angle is just wrong.

 

[Global]

For a Caucasian they say that 15 minutes of decent sunlight exposure/day is enough to provide the amount of vitamin D required per day.

Its important to be aware that Vitamin D actually comprises of Vit D3 ie CHOLECALCIFEROL and Vit D2 ie ERGOCALCIFEROL; replacement therapy usually consists of D3.

And yes, 1mcg of Vitamin D3=40iu.

The also say that in the places as far north as Boston you can't make any Vitamin D for about 5 months out of the year because the sun's angle is just wrong.

I wonder if they have any significant statistical differences in rates of skin cancer in Boston vs. New York City for example.

 

[Laban Shrewsbury III]

Vitamin D is a huge thing for me personally
I take it every day . I notice major mood problems when I
Stop taking it for a few days .

My natural Dr had a patient that was literally suicidal
From low levels of vitamin D

You're imagining that. Serum D levels do not fluctuate on a daily basis - it would take several weeks to months for any deficiency symptoms to arise.