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Vitamin D Supplementation Improves Cognitive Function: 12-month RCT

pubmed.ncbi.nlm.nih.gov

181–190 of 198 posts

Re: Vitamin D Supplementation Improves Cognitive Function: 12-month RCT

#181
post #61

Earlier quoted context omitted.

Vitamin D2 + D3 per 100g portion of mushrooms, according to this website from the USDA Agricultural Research Service ( https://fdc.nal.usda.gov/ ) - Mushrooms, raw: 0.2 µg (7 IU) - Mushrooms, Chanterelle, raw: 5.3 µg (212 IU) - Mushrooms, enoki, raw: 0.7 µg (29 IU) - Mushrooms, maitake, raw: 28.1 µg (1123 IU) - Mushrooms, morel, raw: 5.1 µg (206 IU) - Mushrooms, oyster, raw: 0.7 µg (5 IU) - Mushrooms, portabella, raw…

Just came across this fascinating review: https://fungi.com/blogs/articles/place-mushrooms-in-sunlight...

So, much like humans, mushrooms produce vitamin D from sunlight?

Re: Vitamin D Supplementation Improves Cognitive Function: 12-month RCT

#182

Earlier quoted context omitted.

Did you take a soft-gel or hard tablet?

Soft-gel

I find the soft gel ones don't do me any good. I do better with the hard pill type and even better with topical cream. I think it's something to do with the cheap vegetable oil they are packed in.

Re: Vitamin D Supplementation Improves Cognitive Function: 12-month RCT

#183

Earlier quoted context omitted.

Sitting in an office building is one of the worst places you can be for avoiding getting sick.

Kids kind of makes it all pointless. They catch everything and bring it home. It was nice not being sick for so many months. 2 weeks after they went back. Bam, everyone sick. And that’s with intense mask rules and distancing

Maybe the masks and distancing don't actually work?

Re: Vitamin D Supplementation Improves Cognitive Function: 12-month RCT

#184
post #50

My sister got leukemia while part way through her doctorate. After it went into remission, she was unable to recall new information long enough to read papers and had to put her studies on hold. Eventually a doctor did a blood test that included vitamin d levels, and she was in the single digits (don't remember units but it was supposed to be at least 20). She started supplementing and graduated this spring. Just one…

Vitamin D is vital for adaptive immune system function too!

When a T-cell encounters a foreign pathogen, it extends a vitamin D receptor. A signaling device allowing it to bind to the active form of vitamin D. Only after this can T-cells perform their intended function. [1]

Which is likely why healthy levels > 40 ng/mL significantly reduce COVID mortality, there's been > 2 dozen obersvational studies and at least one randomized controlled one. [2]

1. von Essen MR, Kongsbak M, Schjerling P, Olgaard K, Odum N, Geisler C (April 2010). "Vitamin D controls T cell antigen receptor signaling and activation of human T cells". Nature Immunology. 11 (4): 344–49. https://doi.org/10.1038/ni.1851

2. Entrenas Castillo, M., Entrenas Costa, L. M., Vaquero Barrios, J. M., Alcalá Díaz, J. F., López Miranda, J., Bouillon, R., & Quesada Gomez, J. M. (2020). "Effect of calcifediol treatment and best available therapy versus best available therapy on intensive care unit admission and mortality among patients hospitalized for COVID-19: A pilot randomized clinical study". The Journal of steroid biochemistry and molecular biology, 203, 105751. https://doi.org/10.1016/j.jsbmb.2020.105751

Re: Vitamin D Supplementation Improves Cognitive Function: 12-month RCT

#185
post #42

Earlier quoted context omitted.

Worth noting that the above mostly talks above Vitamin D specifically, not multivitamins. D is the only one you do not naturally get from food (ignoring fortified food), and it also as mentioned above one of the cheaper ones. Multivitamins are far more expensive in general.

using a multivitamin daily is considered 'expensive' ?

10-20$ a year, compared to just D which comes down closer to 2-3$ a year. And again considering the other vitamins are much easier to come by. D is usually the ones that's more commonly lacking, especially in northern places.

Re: Vitamin D Supplementation Improves Cognitive Function: 12-month RCT

#186

Funny -- I was just digesting a competing study released recently[0] which showed little-to-no benefit from vitamin D, Omega 3 fatty acids, and exercise (either alone or in combinations). That study used 5X the daily vitamin D as this one. So I guess the jury's still out and I may choose to continue to err on the side of supplementing vitamin D. [0] https://www.upi.com/Health_News/2020/11/10/Study-Little-bene...

> 40.7% of participants had 25(OH)D levels of less than 20 ng/mL at baseline, and according to current guidelines, all were allowed to take 800 IU/d of supplemental vitamin D outside the study medication. So, even the controls were given D3 supplements if they were deficient. That kind of throws the whole study into question.

> That kind of throws the whole study into question.

Well, that turns it into a study that checks if extra vitamin will have an effect, even when there is no deficiency. It doesn't throw the study into question, but it may not apply to what the people on this thread are talking about (what's never clear).

Re: Vitamin D Supplementation Improves Cognitive Function: 12-month RCT

#187

Earlier quoted context omitted.

You belong to an interesting language isolate with whoever wrote this article: SUNNY VALLI CRAG http://3.251.20.7/log-details/?log_id=490&y=2009 I was puzzled by your phrase "can't rhyme off". Google returns very few instances that are not related to spontaneous spoken word poetry (which is likely an example of convergent evolution). After poking around a bit, it seemed as though I had heard a similar phrase before "…

what a fun phrase. wiktionary says canada: https://en.wiktionary.org/wiki/rhyme_off

That reminds me of a fun Canadian song that got passed around in the early Kazaa days (I had thought it was a Corky and the Juice Pigs song, but it is hard to attribute based on Google):

T'was the Scots that built this Country

https://www.youtube.com/watch?v=QakAwOhBkbA

Re: Vitamin D Supplementation Improves Cognitive Function: 12-month RCT

#188

Can mods ban submissions about vitamin D please? This forum has turned into infowars...

Do you find it helpful in life to operate with more, or less information?

More, as long as the new information will lead people to agree with my pseudointellectual position.

Re: Vitamin D Supplementation Improves Cognitive Function: 12-month RCT

#189

Earlier quoted context omitted.

Her post about someone with serious health problems with over-dosing vit d (in this case, just 5,000 UI): https://www.devaboone.com/post/vitamin-d-part-2-shannon-s-st... Her post about vit d in general: https://www.devaboone.com/post/vitamin-d-part-1-back-to-basi...

> 5000 international units (IUs) daily. Five years later Five years. Of 5000 IUs per day Five years. Of more than 10x the EU RDA (and maybe 5x more than the US RDA, still) But please tell me again how easy it is to overdose

I admit I didn't make that clear, the point was 5k UI is not healthy to take long term. But you build a supplement regime around it, and then just keep taking it for years. That's how easy it is.

And in another thread a guy was saying his daily D3 was 20,000 IU a day as if it was perfectly normal.

I was found to be extremely deficient in a blood test and personally been prescribed 10k UI, or maybe even 50k I can't remember, but it was a weekly tablet for only 6 weeks.

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