Cycling UK Forum

Well ............................

Having considered all this about VitD, I ordered some for eBay. £2.99 for 60 tablets.
I've been taking them one a day for the past seven days.

These are wot I ordered.
https://www.ebay.co.uk/itm/114921223982
Note they are advertised as 1000IU and I deliberately ordered 1000IU.

According to the NHS, the max dose is 4000IU.
https://www.nhs.uk/conditions/vitamins- ... vitamin-d/

Do not take more than 100 micrograms (4,000 IU) of vitamin D a day as it could be harmful. This applies to adults, including pregnant and breastfeeding women and the elderly, and children aged 11 to 17 years.

I looked at the packet this morning as I sort of feel "not right".
They are 5000IU

Very small print in no so distinct writing.

I suggest that you don't take any more and that you ask your GP for advice.

And then tell the vendor and eBay and Trading Standards.

Jonathan

Mick F wrote: ↑24 Feb 2023, 11:02am Well ............................

Having considered all this about VitD, I ordered some for eBay. £2.99 for 60 tablets.
I've been taking them one a day for the past seven days.

These are wot I ordered.
https://www.ebay.co.uk/itm/114921223982
Note they are advertised as 1000IU and I deliberately ordered 1000IU.

According to the NHS, the max dose is 4000IU.
https://www.nhs.uk/conditions/vitamins- ... vitamin-d/

Do not take more than 100 micrograms (4,000 IU) of vitamin D a day as it could be harmful. This applies to adults, including pregnant and breastfeeding women and the elderly, and children aged 11 to 17 years.

I looked at the packet this morning as I sort of feel "not right".
They are 5000IU

Very small print in no so distinct writing.

IMG_1701.jpg

Yikes! If you are also taking calcium supplements lay off those for a few days (as well as the vit D).

Mick F wrote: ↑24 Feb 2023, 11:02am
I looked at the packet this morning as I sort of feel "not right".
They are 5000IU

Very small print in no so distinct writing.

IMG_1701.jpg

To be fair to the vendor (x_rated_toys@hotmail.com) the description in the listing is clear.

OK, I'll ask: why does X-Rated Toys sell high-dose vitamin D? Are their customers not getting out into the sunlight much?

mjr wrote: ↑24 Feb 2023, 1:02pm OK, I'll ask: why does X-Rated Toys sell high-dose vitamin D? Are their customers not getting out into the sunlight much?

A satisfied customer says they are easy to swallow.

Buyer beware as far as I'm concerned.
I should have checked.

One week later, and I have checked, and they're going to be put in the fire.
£2.99 was nothing, but I see they are £3.99 now.

I've managed all my life without VitD tablets, so I will carry one the rest of it without them.
Only bought them because of this thread.

Two morals:
One, don't read this forum!
Two, read the instructions.

Mick F wrote: ↑24 Feb 2023, 3:53pm ...
I've managed all my life without VitD tablets, so I will carry one the rest of it without them.
Only bought them because of this thread.
...

When this episode is resolved (advice upthread) how about taking the supplementation recommended by the NHS?

Jonathan

Jdsk wrote: ↑24 Feb 2023, 4:01pm
When this episode is resolved (advice upthread) how about taking the supplementation recommended by the NHS?

Jonathan

Aren't the NHS guidelines just a best guess whilst erring on safety unless you're actually testing your serum 25(OH)D change in response to taking the supplement.

re_cycler wrote: ↑24 Feb 2023, 5:55pm

Jdsk wrote: ↑24 Feb 2023, 4:01pm When this episode is resolved (advice upthread) how about taking the supplementation recommended by the NHS?

Aren't the NHS guidelines just a best guess whilst erring on safety unless you're actually testing your serum 25(OH)D change in response to taking the supplement.

Isn't all clinical advice just the current best guess? : - )

As a policy for the general population it's much better to advise a standard supplementation (or fortification) than to test and dose accordingly. Testing requires deciding what to measure (25-hydroxycholecalciferol isn't the active hormone), how to measure it (between-method and between-laboratory agreement isn't great), when to measure it (big seasonal variations), and what decision limits to use (those best guesses again). It's also slower, much more expensive, and has more points in the process at which it can go wrong.

Jonathan

Jdsk wrote: ↑24 Feb 2023, 6:06pm
Isn't all clinical advice just the current best guess? : - )

Jonathan

True
it sometimes seems to take a long time between results from new research being available and the changes to guidance / the latest best guess.

Jdsk wrote: ↑24 Feb 2023, 6:06pm
As a policy for the general population it's much better to advise a standard supplementation (or fortification) than to test and dose accordingly. Testing requires deciding what to measure (25-hydroxycholecalciferol isn't the active hormone), how to measure it (between-method and between-laboratory agreement isn't great), when to measure it (big seasonal variations), and what decision limits to use (those best guesses again). It's also slower, much more expensive, and has more points in the process at which it can go wrong.

Jonathan

I guess in a cash limited system then treating the population rather than the individual is the most cost effective. Just a shame if you're an outlier.

Jdsk wrote: ↑24 Feb 2023, 6:06pm As a policy for the general population it's much better to advise a standard supplementation (or fortification) than to test and dose accordingly. Testing requires deciding what to measure (25-hydroxycholecalciferol isn't the active hormone), how to measure it (between-method and between-laboratory agreement isn't great), when to measure it (big seasonal variations), and what decision limits to use (those best guesses again). It's also slower, much more expensive, and has more points in the process at which it can go wrong.

If that were true in general, no diagnostic tests would be done for many illnesses and a standard cocktail of drugs would be given to us all based on demographics.

Fortunately, most medics still uphold "first, do no harm" more than "for the greater good" so we don't kill off everyone who reacts badly to widely -used drugs.

mjr wrote: ↑24 Feb 2023, 6:36pm

Jdsk wrote: ↑24 Feb 2023, 6:06pm As a policy for the general population it's much better to advise a standard supplementation (or fortification) than to test and dose accordingly. Testing requires deciding what to measure (25-hydroxycholecalciferol isn't the active hormone), how to measure it (between-method and between-laboratory agreement isn't great), when to measure it (big seasonal variations), and what decision limits to use (those best guesses again). It's also slower, much more expensive, and has more points in the process at which it can go wrong.

If that were true in general, no diagnostic tests would be done for many illnesses and a standard cocktail of drugs would be given to us all based on demographics.

Fortunately, most medics still uphold "first, do no harm" more than "for the greater good" so we don't kill off everyone who reacts badly to widely -used drugs.

My statement was about avoiding vitamin D deficiency in the UK in 2023. I'd hoped that was obvious.

Jonathan

I've tried to scan this thread quickly to follow the gist and check whether the effects of sunlight on the vitamin D content of mushrooms had been mentioned and I don't think it has. From what I gather, humans can utilise D2 as readily as D3 but can only keep it in the bloodstream for a few days compared with weeks for D3.

The Journal of Plant Medicines wrote:Paul Stamets and his team put Shiitake mushrooms with 40 IU of vitamin D into the sunlight for eight hours with the gills upward. The resulting analysis revealed an incredible 46,000 IU of vitamin D2. Another six hours (14 hours in total) of sunlight exposure kicked up their levels to an eye-boggling 267,000 IU of vitamin D per 100 grams

A link to an article by Paul Stamets that I think the above linked page is based on:
https://www.huffpost.com/entry/mushroom ... _b_1635941

These are the Endocrine Society Guidelines linked from my GP records.