3-4 years ago this submission would be flagged in seconds just because of the word Vitamin D.
Vitamin D reduces incidence and duration of colds in those with low levels
71–80 of 241 posts
Re: Vitamin D reduces incidence and duration of colds in those with low levels
#72Earlier quoted context omitted.
I take 8000 D3 (+200ug K2 MK7) daily and I'm fine. since covid I go like this for entirety of winter and then back down when summer comes. Perhaps you live in a climate where you get a lot of sun exposure and somehow overdosed on that. A guy from vitadmindwiki.com even says that you'd have to take 14000IU daily for a year until reaching toxicity limit (although this guy tends to sometimes say different things on the…
The symptoms are hard to describe (but did not include kidney stones), but it was obvious that something was drastically wrong and the drastic wrongness went away in response to my completely avoiding all sunlight and dietary sources of vitamin D and my doing a few other things described below. Most people could probably take as much supplemental vitamin D as I did without incurring this adverse effect, but there is…
Most interesting, will bear that in mind. To this date I haven't encountered any "drastically wrong" symptoms with my d3 usage and frankly haven't heard that much about any adverse events linked to vitamin d3. If you feel comfortable with that then you could disclose what exactly is that adverse effect you've been experiencing, but I see that you try to avoid this topic so no pressure :)
Re: Vitamin D reduces incidence and duration of colds in those with low levels
#73I live in Winnipeg, Manitoba where it is quite cold for a big majority of the year. I have dabbled with supplements because I get a couple of major colds every year. I've heard things like you only need 15 minutes of sunshine per day to get your recommended dose of Vitamin D, but I've also heard it can be quite bad for you if you have too much in your system (and it's hard for your body to flush excess amounts). If t…
It's possible to overdose on Vitamin D, but you have to eat absurd amounts. Unless you eat the pills like candy, you're safe.
Generally agree, but unlike water-soluable vitamins, vitamin D can store excess in fatty tissue and the liver, and so if a person takes a large dose (generally 10,000 IU daily or more), they could develop toxicity over time due to the build-up. That's why it's important to test and adjust dosages according to the data.
Re: Vitamin D reduces incidence and duration of colds in those with low levels
#74Earlier quoted context omitted.
The issue I've found with these discussions is it appears there's mixed evidence on if vitamin D *supplementation* actually has a positive impact, regardless of vitamin D deficiency. In other words, is the deficiency causal or correlative. I have no opinion on the matter, and am inclined to think there is at least some positive benefit. But YMMV
This is solely my own anecdote, but I used to get bad seasonal depression every winter. I tried a number of interventions short of medication; none moved the needle very much. I started supplementing with vitamin D probably 8 years ago and haven't had any issues with seasonal depression since. I'm pretty personally convinced that it was the supplements that helped here.
I tried a 1000 IU vitamin D pills to no avail. Bumped it up to 5000 IU and still saw very marginal bumps in my blood tests
I think I might try daily 10000IU after showing my doctor how little it's moving the needle for me
Re: Vitamin D reduces incidence and duration of colds in those with low levels
#75Reminder that the Recommended Daily Allowance of Vitamin D found on all the labels (800 IU) is mistakenly too low, by a factor of 10x, due to a maths error (should be 8000 IU). It has not been corrected yet. Source: https://pmc.ncbi.nlm.nih.gov/articles/PMC5541280/
Re: Vitamin D reduces incidence and duration of colds in those with low levels
#76Vitamin D, red light therapy, insulin attenuating response of a walk, immunological benefit of allergen exposure, cognitive noise reduction and rest response of walks in forests. Man keeps trying to bring the outdoors inside.
Man suffered outdoors very much, for a million years. Man want both good of indoors and good of out outdoors.
Man agree
Re: Vitamin D reduces incidence and duration of colds in those with low levels
#77Unfortunately Vitamin D deficiency tests (probably it is not covered by your insurance), high dose supplements are currently pushed so much by Doctors I started to think this is almost a scam. Most of the research about the subject are very noisy and conflicting.
If there is any reason for the test, it would be diagnostic and not preventative, and that is generally covered. Just checking cause you want to know your levels generally wouldn't be, but there are any number of symptoms that could be related to that.
As for it being a "scam" - there are enough valid studies that show what this one did, that folks who are deficient that are able to raise their levels tend to be slightly healthier.
There isn't necessarily evidence for supplementation beyond "normal" range, and I do agree that no one should just take high-dose vitamin D supplements without data (tests) that it is necessary.
Re: Vitamin D reduces incidence and duration of colds in those with low levels
#78I take 10k IU of vitamin D if I feel a cold coming on. I used to get extremely bad colds very frequently, and every time I get frustrated and read whatever research might be helpful. A year ago I came across some info about LL-37, and found that vitamin D might help, and that's when I started taking it. https://pmc.ncbi.nlm.nih.gov/articles/PMC9134243/
The big dose of D seems to help. I'm certain I'm deficient, since I already take 2-4k daily, which noticeably helpsy winter blues. It's the first time I can "arrest" a cold, and even if I get sick the symptoms aren't nearly as bad.
My full protocol for if I start feeling a cold is this:
1. 10k vitamin D 2. Stay extremely warm when I sleep. Uncomfortably warm. 3. Butyrate (probably a placebo) 4. Curcumin (almost certainly a placebo).
Re: Vitamin D reduces incidence and duration of colds in those with low levels
#79Earlier quoted context omitted.
The issue I've found with these discussions is it appears there's mixed evidence on if vitamin D *supplementation* actually has a positive impact, regardless of vitamin D deficiency. In other words, is the deficiency causal or correlative. I have no opinion on the matter, and am inclined to think there is at least some positive benefit. But YMMV
The problem is that vitamin D doesn’t absorb the same way for everyone. If a 100 people take 50IU of Vitamin D, you get 100 different results. Some get enough from minor sun exposure and maybe eating a fish now and then. Others need massive doses to get any results.
50 IU is nothing. 3000 IU is something. I have MS, so I need to supplement at least 10k IU.
And yeah, it does not absorb well unless you eat some fat.
Re: Vitamin D reduces incidence and duration of colds in those with low levels
#80Newsflash: When you are sick, addressing comorbid conditions helps you get better faster.
Yeah, this is a crucial point. This is studying "adults with suboptimal baseline." If you have a vitamin deficiency and get sick, I would expect supplementation with that vitamin to provide some relief, regardless of which vitamin it is.
This does not mean that the same will happen for people who did not have a deficiency.
Having said that, there is good evidence that Vitamin D deficiency is widespread, and supplementation of Vitamin D is relatively safe unless you take excessive amounts.