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by Aurornis 144 days ago
That’s a large enough error that it calls the rest of the writing into question, in my opinion.

Also, be careful taking 5000 IU/day of Vitamin D. I did this for a few months and it was enough to send my blood levels over the top of the range, even in winter.

Too much Vitamin D is not good for you. The supplement fans have gone too far in recommending too high of dosages. My doctor said she’s seeing a lot of people with excessively high Vitamin D levels now that it has become popular.
1 comments
seba_dos1 144 days ago
It's usually pretty hard to get to toxic levels though, most people that don't live in a particularly sunny climate won't get anywhere near there on 5000 IU/day.

Just test your blood levels before you start and then after 3 months or so. It's quick and cheap, and the only way to know whether the dose is right.

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Aurornis 144 days ago
> It's pretty hard to get to toxic levels though, most people that don't live in a particularly sunny climate won't get anywhere near there on 5000 IU/day.

No, that’s literally what I was doing when I reached the excessive range: 5000 IU/day in winter with an indoor job.

This commonly repeated idea that everyone is deficient and you can’t overdose on 5000 IU/day is wrong.

> Just test your blood levels before you start and then after 3 months or so. It's quick and cheap, and the only way to know whether the dose is right.

Literally what I did.

Every time I explain this online it seems like the supplement people ignore what I wrote and just parrot the same “5000 IU/day and everyone is so deficient you can’t overdose” myth.

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seba_dos1 144 days ago
> No, that’s literally what I was doing when I reached the excessive range:

That doesn't make it easy for most people. In my case it was barely enough to move the needle, but that's not how it will be for most people either.

> you can’t overdose on 5000 IU/day is wrong

Of course you can (though it would usually have to be really prolonged to actually cause you troubles, and even then it's mostly due to calcium rather than vit D itself). The vast majority of people won't, but you don't know whether you're in that group or not until you test yourself.

> Literally what I did.

That's good, but my post obviously used plural "you" as a general advice.

(BTW. There's no evidence of toxicity below blood level of 150 ng/ml, but there are many guidelines that consider levels way below that, such as 50 ng/ml, as "too high" already)

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redhed 144 days ago
It can also be at non-toxic levels but still cause arterial calcification.
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