Live data from Hacker News

Vitamin D reduces incidence and duration of colds in those with low levels

ijmpr.in

81–90 of 241 posts

Re: Vitamin D reduces incidence and duration of colds in those with low levels

#81

Earlier quoted context omitted.

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

[deleted]

Re: Vitamin D reduces incidence and duration of colds in those with low levels

#82

Earlier quoted context omitted.

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 :)

It's not that I'm unwilling to publish the information: it is just that I despair of putting into words how I knew something was drastically wrong with my physiology -- especially now that 25 years have gone by.

Re: Vitamin D reduces incidence and duration of colds in those with low levels

#84

Supplementing with vitamin D is honestly one of the easiest things you can do... it's cheap, available everywhere, and makes a real difference. Just make sure you're also taking magnesium citrate (or another good form of magnesium) with it, since your body needs magnesium to properly use vit D

And K2.

As for magnesium, I would go with magnesium glycinate or magnesium threonate.

Re: Vitamin D reduces incidence and duration of colds in those with low levels

#86

Earlier quoted context omitted.

Dogs can synthesise vitamin C…

Wow, that is interesting. They can synthesise it in their liver?

Many animals can. There are a gene for it, humans don't have it. There is a lot of speculation as to why, but nothing really stands out (possibly just random chance - if you eat enough there is no advantage to keeping the gene and in turn no loss from losing it. However I'm unable to rule out other possibilities) https://pmc.ncbi.nlm.nih.gov/articles/PMC3145266/ is a really interesting survey of the issue across many different species.

Re: Vitamin D reduces incidence and duration of colds in those with low levels

#87

Earlier quoted context omitted.

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

It's expensive in the US because one company has exclusive sales here (patent protection?), but you could try calcefidiol, weekly dose and is supposed to get levels up rapidly. Apparently it's the common form to take in Spain, and it's further down the metabolic pathway vs cholecalciferol. (I take but still have to get levels checked)

Re: Vitamin D reduces incidence and duration of colds in those with low levels

#89
post #40

Unfortunately 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 it's a scam, who's profiting? The pills are dirt cheap, generic, and over the counter.

Dr. Michael Holick: https://www.nbcnews.com/health/health-news/selling-america-v...
Post reply on HN