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Vitamin D Insufficiency is Prevalent in Severe Covid-19

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Re: Vitamin D Insufficiency is Prevalent in Severe Covid-19

#161
post #96

Earlier quoted context omitted.

To be fair: It isn't just folks with indoor jobs and hobbies. I've discussed this with my doctor after being severely low on vitamin D. It caused physical pain. I'm far enough north that it is impossible to get the sunlight needed during the winter. I still have days, but they are short without strong sun - not to mention that it is too cold to go without a jacket. So, supplements at least during the winter. During t…

Sunlight exposure is also bad for you; taking it orally is the way to go for most people. As pointed out upthread, most supplements are hilariously low-dose. I take 20k IU, 3 times per week. (most supplements are like 1000IU per pill, but 3000IU pills can be found)

Sunlight is bad for you in high doses without sunscreen.

Moderate exposure is healthy, and may decrease the risk of many other cancers and heart disease.

https://www.medicalnewstoday.com/articles/260247#3

https://www.telegraph.co.uk/news/2018/03/07/dose-sunshine-ex...

https://www.marksdailyapple.com/why-some-sun-exposure-will-p...

Another way to look at it is that we evolved with the sun over millions of years, and that wouldn't have happened if it were too bad for us...

Re: Vitamin D Insufficiency is Prevalent in Severe Covid-19

#162
post #68

Earlier quoted context omitted.

I read up on this because I had a really bad sinus infection a couple months ago and found myself taking "Emergen-C" every morning, which advertises "1000% your daily value of Vitamin C". Immediately after my sinus infection cleared up the virus stuff started, so I kept taking it for a while. From what I read, at least with Vitamin C, you have to get into the 2000% range before there start being negative side-effects…

I take as much as 20 grams a day with no side-effects. It can take your stomach awhile to get used to that much but once it has adjusted its fine.

The other thing I've always heard is that taking more than the recommended amount is pointless, because your kidneys filter it out. I definitely wouldn't take the time to adjust to an even higher dose. I was mainly only taking the dose I was because I didn't want to try and subdivide the little packets.

Re: Vitamin D Insufficiency is Prevalent in Severe Covid-19

#163
post #33

Anecdotelly, in Europe the countries worst hit by the virus have the most strict confinement: Italy, Spain and France. Makes you wonder if there is a correlation to Vitamin D insufficiency due to lack of sun light.

We had enough (more than enough, actually) sun this past winter here. The lock down happened after the virus hit us hard so your comment doesn't make much sense.

Anyway, we have VDI too even with our sunny weather. Not everybody likes sunbathing and the use of sunscreen with a high SPF is common.

Re: Vitamin D Insufficiency is Prevalent in Severe Covid-19

#164
post #103

Earlier quoted context omitted.

> For reference, 5,000 IU is >800% the FDA daily recommended value. Unfortunately the daily recommended value was established erroneously and should be much higher. Many research papers mention this. For example: > The Institute of Medicine recommendation for adults younger than 70 years of age is 600 IU of vitamin D daily. We are told that this would achieve a level of 50 nmol/L in greater than 97.5% of individuals.…

On the other hand, there's downsides with too much Vitamin D, like hypercalcuria and the risk of kidney stones from that: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5872784/

I've read a few references that mention taking vitamin K2 together with the Vitamin D makes this a non issue. I don't have a link handy, though.

Re: Vitamin D Insufficiency is Prevalent in Severe Covid-19

#165
post #125

Earlier quoted context omitted.

If you're a man, you can give blood to get this effect. I believe there was a study linking this to a decline in diabetes risk (or something like that).

Excess iron appears to be more of a risk factor for heart disease than diabetes. This is suspected as a reason why pre-menopausal women have a lower risk of heart attack than men and post-menopausal women. This is still an area of active research and not really proven.

Yes, that, too. I was thinking of this, but I think they're all closely related. And hey, even if the science doesn't pan out, you've still probably helped someone out with your donation.

https://www.nature.com/articles/d42473-018-00382-9

Re: Vitamin D Insufficiency is Prevalent in Severe Covid-19

#166
> Interesting thing... Vitamin D is one of those things that, when vitamins come up on HN, you will often hear the refrain that "it's the one vitamin that large numbers of people are actually deficient in and ought to supplement."

Well, let me add to the narrative, as this was the concentration of my Undergrad studies. Vitamin D, and its analogues are not actually vitamins, they're steroid-hormones and behave as such; look at its molecular structure [1] and its synthesis in the presence of UV light (as this actually how you should be acquiring it).

Most people are deficient in Vitmanin D, the recommended dose of 600 IU are actually not sufficient as many studies, research lends credence to as those that induced viable therapies were often upwards of 4000-10000 IU. The IOM is to blame for this, and a heated debate amongst researchers.

I won't go into full detail on that, but Vitamin D is a critical precursor and reactant in many vital metabolic reactions, my personal concentration was in inducing apoptosis in certain cancer cells with calcitriol, EB 1089, CB 1093, and p53. My proposals were rejected for Independent Studies and I never undertook it in the lab, unfortunately.

> Unfortunately the daily recommended value was established erroneously and should be much higher. Many research papers mention this...

Exactly. My bible was a Vitamin D book with 100+ chapters detailing researchers that published papers detailing how their models were showing that such low IU of Vitmain D were insufficient, going against the IOM's RDL.

If any of you are so inclined the 2nd Volume of Vitamin D by Feldman has been released [2], its expensive but still way less than what the last copies of vol 1 were that I paid back then.

> Nobody makes any money if it turns out to be a good treatment, so nobody will fund the research

You have no idea the amount of dismay I felt when I realized this was the case when I was in school; though I would argue they've fund(ed) it in the past, the problem is their is no way to place IP on Vitamin D itself and therefore Big Pharma's business model doesn't apply, so it can show favourable results but it will be killed because their is nothing to bring to Market as an exclusive seller like they do for drugs. Many therapies could have been explored since H1N1, 2009, but it falls on deaf ears and it takes pandemics like these to shake people into delving into Public Health more seriously.

I hope changes are made by motivated students and researchers, ideally outside of Universities because I know I no longer have the patience or drive to try any more.

1: https://external-content.duckduckgo.com/iu/?u=https%3A%2F%2F...

2: https://www.amazon.com/Vitamin-Disease-Therapeutics-David-Fe...

Re: Vitamin D Insufficiency is Prevalent in Severe Covid-19

#167
post #152

Earlier quoted context omitted.

I suspect that is an idiosyncratic definition.

“A vitamin is an organic molecule (or related set of molecules) that is an essential micronutrient which an organism needs in small quantities for the proper functioning of its metabolism. Essential nutrients cannot be synthesized in the organism, either at all or not in sufficient quantities, and therefore must be obtained through the diet. ” https://en.wikipedia.org/wiki/Vitamin

By this definition you might argue that it's a vitamin north of some geographic line and a hormone south of that line ....

Also, nicotinamide (one form of Vitamin B3) is a metabolite of niacin (nicotinic acid, another form of Vitamin B3). Humans can produce the former from the latter, but require at least one of them from the diet. Does that make niacin a vitamin, but nicotinamide a hormone? They are not equivalent, but as far as "being essential", they are substitutes.

(No idea myself, just rumbling thoughts)

Re: Vitamin D Insufficiency is Prevalent in Severe Covid-19

#168

> Interesting thing... Vitamin D is one of those things that, when vitamins come up on HN, you will often hear the refrain that "it's the one vitamin that large numbers of people are actually deficient in and ought to supplement." Well, let me add to the narrative, as this was the concentration of my Undergrad studies. Vitamin D, and its analogues are not actually vitamins, they're steroid-hormones and behave as such…

So for all of us biochemistry muggles, what should we be taking and how much?

I just want to pip install vitamin-d and be on my way.

Re: Vitamin D Insufficiency is Prevalent in Severe Covid-19

#169

Earlier quoted context omitted.

Harvard Medical says that dosage is potentially unsafe: https://www.health.harvard.edu/staying-healthy/taking-too-mu...

It doesn't really say that: it just repeats the standard advice that 4000 IU is the safe upper limit. The real answer is to get yourself tested regularly if you supplement large amounts of D3. (I'd advise taking K2 with it too, but do your own research.)

My question is, does the k2 supplement make a difference? I'm asking this as someone who eats regularly a lot of greens.

Re: Vitamin D Insufficiency is Prevalent in Severe Covid-19

#170

Interesting thing... Vitamin D is one of those things that, when vitamins come up on HN, you will often hear the refrain that "it's the one vitamin that large numbers of people are actually deficient in and ought to supplement." I've heard that many times over the years and I have taken a Vitamin D supplement on and off (more off than on) over the years. When this COVID-19 thing first hit, I had a physical scheduled…

A psychiatrist I saw multiple years ago told me to start taking Vitamin D. I went more or less blindly with 5,000 IU after reading some internet articles. I got my blood checked last year and decided I should probably actually know if I'm doing too much or too little. I was within 5% of the middle of the healthy range for vitamin D levels. For reference, 5,000 IU is >800% the FDA daily recommended value. People with…

> People with indoor jobs and hobbies are probably not getting enough.

I argue that if you go outside and wear the appropriate sun protection—long pants,long sleeves, neck covered, broad rim hat, and wear sunscreen on the exposed parts—you can't get enough sun exposure to produce enough Vitamin D.

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