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

ijmpr.in

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

#4
I 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 there a safe level of Vitamin D supplements where you won't run this risk? I don't drink milk either because I'm lactose intolerant.

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

#5
Heliotherapy is well-due for a resurgence. One of my favourite youtubers (conquer aging or die trying) has a great interview with a medical doctor about sunlight as a medical intervention. Well worth the watch:

https://m.youtube.com/watch?v=UF8UE6cJaWQ

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

#6

Anecdotal but when I'm sick I double my vit C and D intake which typically helps me.

> which typically helps me.

Uhm, how can you get to that conclusion? I mean: how can you compare the evolution of a cold with and without the vitamin surplus?

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

#7
Most vitamins are a waste of time and money, some are even harmful[1], but there are a lot of people with D deficiency, especially in winter[2].

1 https://www.mdpi.com/2072-6643/17/17/2744#:~:text=highest%20...

2 https://www.abs.gov.au/articles/vitamin-d#edit-group-image--...

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

#9

Anecdotal but when I'm sick I double my vit C and D intake which typically helps me.

IANAMD.

It is my general understanding that unless you are severely deficient, Vitamin D supplementation generally takes weeks to bring levels up. It's unlikely that taking it for a few days is going to have any measurable impact on your recovery from illness unless you are severely deficient and/or taking MASSIVE doses, which may or may not be recommended depending on your prior levels and BMI.

See more here: https://www.ccjm.org/content/89/3/154

e: fixed broken URL

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

#10
post #4

I 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…

I take 5000 IU per day year round and have not had any issues. Research suggests you can dose 10x that without major problems, although personally I wouldn't go higher than I am already.

https://pubmed.ncbi.nlm.nih.gov/30611908/

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