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Vitamin D Supplementation Improves Cognitive Function: 12-month RCT

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

#61

Post by ip26 »

29athrowaway wrote: post #52
bawolff wrote: post #31

Earlier quoted context omitted.

Mushrooms? Salmon? Liver? Eggs? All of these have vit D without being fortified (mushrooms being a bit debatable as to if its fortified) And its a little misleading not to talk about sunlight - technically that's not a food, but you were kind of implying you couldn't get it from the natural environment.

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...

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

#62

Post by dragonwriter »

artursapek wrote: post #58
randmeerkat wrote: post #43

Earlier quoted context omitted.

I know different people have different risk tolerances, but there’s no way I would get on a plane during a pandemic if I don’t have to.

An airplane is probably a safer place to be than your local grocery store right now.

Unless airplanes are alternatives to grocery stores, even if that comparison was accurate it would be meaningless.

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

#63

Post by deelowe »

kevinmchugh wrote: post #25
rustamm wrote: post #14

Earlier quoted context omitted.

One important factor in vitamin studies is the prevalence of vitamin deficiency in a particular population. E.g. vitamin D in the US might not be as effective because it is already added into many food products, e.g. milk, which is not the case for other countries.

Even within a population, vitamin D deficiency will vary by lifestyle, skin tone, and climate. All three of which vary a lot in the US.

My understanding is that even the definition of what constitutes deficient isn't settled due to how it's measured. For example, many African Americans show deficient even though it's believed they aren't.

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

#64

Post by 29athrowaway »

ip26 wrote: post #61
29athrowaway wrote: post #52

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...

267,000 IU after exposing mushrooms to 14 hours of UVB?

Holy cow.

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

#65

Post by bawolff »

29athrowaway wrote: post #52
bawolff wrote: post #31

Earlier quoted context omitted.

Mushrooms? Salmon? Liver? Eggs? All of these have vit D without being fortified (mushrooms being a bit debatable as to if its fortified) And its a little misleading not to talk about sunlight - technically that's not a food, but you were kind of implying you couldn't get it from the natural environment.

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…

How much vitamin D is in a mushroom is going to depend more on how they are grown and stored then on the particular species afaik (in particular how much uv radiation it is exposed to).

I believe also that there will be more vitamin D in mushrooms that are irradiated to give them a longer shelf life. I don't think usa is a country where that practise is common, but i believe it is common in some other countries.

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

#67

Post by numismatex »

throwaway5752 wrote: post #23
ve55 wrote: post #5

It's worth noting that vitamin D has a lot of high-confidence but low-effect results going for it, including a lot of strong meta-analysis over many health outcomes. What I mean by this is that it usually seems to conclusively either do something beneficial, but minor, almost nothing in the case of many studies, and in the case of some others, something very beneficial (as we've seen a few of in relation to covid rec…

It is fat soluble. You can develop toxicity, and the effects are not trivial: https://www.mayoclinic.org/healthy-lifestyle/nutrition-and-h... It seems based on casual reading of research that more people are deficient than not and dosing to toxic levels is unlikely. But it's not a bad idea to do this under the care of a doctor.

taking normal reccommended doses, even getting your levels to average from low takes forever.

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

#68

Post by monetus »

nerbert wrote: post #60
eloff wrote: post #40

Earlier quoted context omitted.

There's an expert that specializes in vitamin D toxicity cases and regularly posts here. She sees cases at less than the 10000IU daily dose Fauci takes. I would be hesitant to go above 4000IU daily without monitoring blood levels every six months or so. Its winter here in Canada, I'm taking 3000IU per day. I drop that to 1000IU in the summer. I'm not a doctor, not recommending you do the same. Just sharing.

Obvious warning but there's a lot of name dropping and I'm not sure what leads people to think Fauci 1) takes 10kUI or 6kUI per day 2) that it's the right dose for them 3) that they can make conclusions on what to do with their health based on a forum. Get your blood checked, get recommendation from a doctor... before supercharging your blood with calcium & other fun stuff...

The 10,000 number is hearsay I overheard as a family member listened to this english nurse who professed to taking 5,000 himself. - https://youtube.com/user/Campbellteaching

I imagine someone reading this may not have healthcare coverage, but bloodwork can be cheap! Save up! Please be cautious

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

#69

Post by null_object »

dilap wrote: post #7
ezekiel68 wrote: post #6

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...

Or just get some sunshine! It's likely there are other benefits, besides just the vitamin D.

> Or just get some sunshine!

Where I live I haven't been able to get sun actually on my skin for the last three weeks.

I saw sunshine through the window one day last week while in a meeting, but it was gone an hour later. According to my weather app the next break in cloud is more than a week from now.

Even when there is sunshine in the winter, it's often too cold to expose more than a tiny amount of skin anyway. Please don't assume we all live in California.

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

#70

Post by ardy42 »

eloff wrote: post #40
monetus wrote: post #34

Earlier quoted context omitted.

For reference: The level of toxicity listed in your link is 60,000IU per day. Fauci said he takes 10,000IU per day. The bottle I purchased recommends 2,000IU per day. Get your blood work done people.

There's an expert that specializes in vitamin D toxicity cases and regularly posts here. She sees cases at less than the 10000IU daily dose Fauci takes. I would be hesitant to go above 4000IU daily without monitoring blood levels every six months or so. Its winter here in Canada, I'm taking 3000IU per day. I drop that to 1000IU in the summer. I'm not a doctor, not recommending you do the same. Just sharing.

> I would be hesitant to go above 4000IU daily without monitoring blood levels every six months or so.

I did that for a little while (though the nurse practitioner at my work clinic wasn't too keen on signing off on non-medically indicated blood tests). IIRC, I was supplementing at 5000IU a day and after a few months wound up with a higher blood level than I was comfortable with, based on the ranges that came with the tests. After that, I reduced down to 2000IU a day or less.

I've been much less into supplements in general, but I only take 2000IU irregularly now.

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