Posted by tealady on October 21, 2004, at 20:35:29
In reply to Re: Supplements for brain fog? » raybakes, posted by raybakes on October 21, 2004, at 15:42:29
> maybe this was why i needed vitamin A and D together...if vitamin D upregulates TSH, then maybe I needed vitamin A to downregulate it?
>
> TSH secretion stimulated by thyroliberin in patients with hypothyroidism receiving 1,25-hydroxyvitamin D3]>
> [Article in Polish]>
> Gasinska T, Kierat A, Kochanska-Dziurowicz A, Izbicka M.
>
> The effect of 1,25-hydroxy vitamin D3 on the secretion of TSH was studied in 49 patients with primary hypothyroidism. The vitamin D3 metabolite did not cause any significant changes in the secretion of TSH both basal and stimulated with TRH in patients with untreated hypothyroidism. In those treated with the synthetic L-thyroxine it produced a significant increase in basal TSH secretion.
>well there goes that logic. Should have read all your posts first :)
I've always found too that I need the oil based A&D together.(if at all..usually only in winter)
I'd just assumed it worked well as the form of VitA and VitD maybe closer to my bodies requirements. Never really thought about needing both..just they come together in nature in this form..and also generally if they come together in nature, then that's usually how we are designed to need them.... natural selection and all that stuff)..even if we haven't worked out the why as yet.
BTW I thought the choice we have commercially was usually cod liver oil or halibut liver oil... both fish liver oils..cod or halibut. I have for the past 10 years used halibut liver oil I thought? Do you find one better than the other?Grin, remember before I confused the two re carotene?..its like I said, I've always thought about them together..except on the parathyroid /calc/VitD/phosphate path.
At a stretch I guess extra VitD could caus extra calcium (given sufficient amounts of other things..oestogen being one of probably lots)
and calc could lower available thyroid hormones in those on T4 replacement..which may feedback to pit/hypo and raise TSH..if that pathway is working optimally!
Is this logic correct? BTW I always welcome/enjoy constructive critism.
Jan
poster:tealady
thread:359642
URL: http://www.dr-bob.org/babble/alter/20040928/msgs/405658.html