Vitamin D toxicity: review & discussion, NOT recommendation

[passenger]

There's a load of pre-print stuff on CBD coming out of Israel at the moment tout

sciatica ?

No, I badly broke my right leg 13 months ago.

 

[WouldBe]

That's not a theory.

Implicated means there's a suggestion that something may be involved. There are many such suggestions about vitamin D and disease/s. Doesn't mean that all of them will hold, but does give some pointers on things to try to find out more about, if any of the things are relevant to oneself.

I really can't see why you think any theory was being promoted.

Implicated doesn't mean proven so it's only a theory until then.

 

[Mation]

Implicated doesn't mean proven so it's only a theory until then.

Yes*. So why are you arguing against people saying something is implicated?

It was only you who said that stating that something is implicated was equivalent to a strong claim.

*Although I still haven't worked out what theory you mean, if a theory is a set of explanatory ideas, rather than just saying 'this might be linked to that'.

This is gently becoming one of the most vague arguments I've ever had

 

[elbows]

Vagueness could be a sign of a vitamin D deficiency.

 

[8ball]

Vagueness could be a sign of a vitamin D deficiency.

I think you might have cause and effect backwards.
And also mis-spelled “vegan-ness”.

E2a - joke hopefully obv not aimed at anyone, least of all the most reasonable vegan on the boards

 

[quimcunx]

Zoe just emailed me with a video discussing Vitamin D. I've not watched it yet, sorry, but here it is.

 

[8ball]

Zoe just emailed me with a video discussing Vitamin D. I've not watched it yet, sorry, but here it is.

Just watched (well, listened) while making lunch. Definitely worth a look.

 

[CH1]

Zoe just emailed me with a video discussing Vitamin D. I've not watched it yet, sorry, but here it is.

Thanks. Found your post by Urban search.
I recently had a routine blood test - and for some reason the GP had added vitamin D level - which turned out to be ABNORMAL
was 14nmol/L whereas normal range is 50-150 nmol/L

I now got prescribed a Vit d supplement along with the regular BP medication - without warning.

I note the (Suoerdrug) pharmacy had to count out 60 1,000 unit tablets - so I got no manufacturer's box or info leaflet.
Makes one wonder when your video above does comment upon source issues for Vitamin D supplements.

Presumably the proof will come in my next blood test?

 

[Sasaferrato]

I'll start with the caveats (current advice and units):

• Please do not increase your vitamin D intake on the basis of the OP, or of hope induced or inferred from a quick read.
• The current NHS advice is that adults need 10 micrograms of vitamin D per day, as do children older than 1 year.
• The same NHS source says that babies need 8.5-10 micrograms per day.
• 1 microgram of vitamin D = 40 international units (IU).
• Therefore, 10 micrograms of vitamin D = 400 IU.

So, to the reason for the thread:

A colleague with long covid told me that he's been taking massive amounts of vitamin D, way above the recommended maximum dose, and that it's helping with his symptoms and sleep. He said that the current recommendation is based on a decimal point error, much like spinach (but in the opposite direction), and that vitamin D toxicity only (usually?) occurs at much greater levels than currently indicated.

I uncharitably assumed he was talking woo, but looked it up anyway.

First hit I found on PubMed was this: The Big Vitamin D Mistake. It's a paper from Finland that says a statistical error was behind current recommendations, and that

• 8000 IU (200 micrograms) should be the recommended daily amount for adults,
• and 25 micrograms (100 IU) for babies up to 1 year.

urbanSciHiveMind - what do you think? Have you come across any papers that shed more light on this? (Its been bugging me, but I haven't had the chance/ability to investigate much further yet.)

Anecdata: On the basis of the paper I found and a certain degree of recklessness, I've upped my daily dose of 4000 IU to 12, over the past week. My eczema has cleared up, and I've been sleeping an hour or two longer. Tis only anecdata, though. I don't have a clear idea of what else I've changed that might make a difference, habit-wise. In the same time frame, I've had to go to work on site more often; consequently cycled more; had more regular meals, and drunk less alcobooze, amongst the things I can readily think of.

The NHS website states that the max daily dose of Vit D is 100mcg. That is what we take in Winter, together with B complex and 500mg of C.

 

[weepiper]

14 nmol is severely deficient, CH1. They should have prescribed you a higher dose than that, it'll take you ages to get up to a better level on 1000iu a day.

https://www.google.com/url?sa=t&source=web&rct=j&url=https://www.ouh.nhs.uk/osteoporosis/useful-info/documents/VitaminDSupplementationinprimarycarev16.pdf&ved=2ahUKEwjB8Ibxwej1AhWDgVwKHTIKDfsQFnoECC8QAQ&usg=AOvVaw2ZxZp8eVC9PXWlRBmFCzK7