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Critical Cofactors for P5P Function?

p5p vitamin b6

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#1 ailsworb

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Posted 29 August 2019 - 12:41 AM


Earlier this year I started taking the inactive form of B6 pyridoxine hydrochloride and found really amazing cognitive benefits. Over time (the course of several months) the effects began to fade. I figured the problem could be either 1) a down-regulation of dopamine receptors or 2) deficiency of a co-factor required for the conversion in the liver into the active form P5P. Ceasing the B6 to upregulate dopamine receptors again didn't seem to work even after 2 whole months without it, and all the suspected co-factors related to B6 that I know of (riboflavin, zinc, etc.) didn't do anything.

 

Eventually I decided to bite the bullet (or pill, in this instance) and try the already activated form P5P, even though I wasn't convinced that bypassing the conversion in the liver was going to do anything. What followed was an immediate restoration of ALL the positive cognitive benefits I had initially received, followed by a MASSIVE DROP in cognitive ability. Absurd headache, impaired memory (forgetting things seconds after hearing them), generally making a lot of unusually dumb mistakes at work, etc. This had NEVER been a side effect of taking the inactive B6. And now P5P only has negative effects with no benefits at all, although I've never experienced the peripheral neuropathy that some people seem to.

 

My question is, does anyone know of any co-factors that are necessary for proper functioning of the already activated B6? Would the liver slow down B6 conversion as a preventative measure to avoid the neurological effects of having too much circulating active B6 without adequate levels of this mystery co-factor?



#2 StevesPetMacaque

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Posted 29 August 2019 - 09:23 PM

It's simplistic, but try increasing potassium intake (add 2000-3000 mg to your current intake). I get anxiety and dark mood with P5P supplementation that improve greatly with more potassium. For whatever reason, I find dietary sources to be much easier on the gut than KCl or other supplemental forms. It usually only takes 2-3 days for this improvement to be noticeable, so it may be worth a shot.



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#3 ailsworb

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Posted 30 August 2019 - 01:44 AM

I actually tried potassium powder the end of last year. All it did was give me really bad muscle cramps. Maybe I should try it again though, if there's a definite connection with B6.



#4 StevesPetMacaque

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Posted 30 August 2019 - 06:52 PM

Out of curiosity, what's in the rest of your stack?



#5 ailsworb

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Posted 31 August 2019 - 12:27 AM

Only Magnesium, B6, and Vitamin D, with Vitamin D being the most recent addition a couple weeks ago.

I had the same sort of problem with magnesium a while back. Evidently you can lower calcium levels too much even with just oral magnesium.



#6 StevesPetMacaque

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Posted 31 August 2019 - 05:17 AM

Did the side effects wear off? If so, you might also try slowly titrating up the dose.



#7 DaveX

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Posted 04 September 2019 - 03:10 PM

The effects sound like they could be caused by putting too much weight on one side of the vitamins. Maybe try a more full-spectrum vitamin supplementation?
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#8 Daniel Cooper

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Posted 05 September 2019 - 03:09 PM

It's simplistic, but try increasing potassium intake (add 2000-3000 mg to your current intake). I get anxiety and dark mood with P5P supplementation that improve greatly with more potassium. For whatever reason, I find dietary sources to be much easier on the gut than KCl or other supplemental forms. It usually only takes 2-3 days for this improvement to be noticeable, so it may be worth a shot.

 

 

Supplementing potassium to the tune of 2000 - 3000 mg beyond your normal intake seems like a lot of additional potassium.  The suggested range for daily intake is 1600 - 2000 mg (some will say as high as 4700 mg) and presumably you're getting a decent amount of K in your diet (though admittedly many people aren't getting that recommended 1600 - 2000 mg, though they clearly aren't getting 0 mg). Hyperkalemia can be a real issue with significant consequences.  I personally would not take 3g of potassium beyond what I'm getting in my diet.


Edited by Daniel Cooper, 05 September 2019 - 03:11 PM.

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#9 StevesPetMacaque

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Posted 06 September 2019 - 02:22 AM

I did suggest to add it via diet, though. Just 1 large potato + 1 large avocado will contain over 2000 mg between the two. Very little risk of hyperkalemia if you go that route. If one were to just take KCl or KHCO3, then certainly, it should be diluted in 1-2L of water and sipped throughout the day. Adding ~200 mg/hr over the course of 12 hours should be quite safe in the absence of kidney disease.

 

Anyway, this is based on N=1 experience with side effects (and also, not the exact same ones) from P5P supplementation. For all I know, it could be due to something else entirely, like peripheral AADC activity being boosted by B6 repletion.

 

Incidentally, most recommendations I have seen are closer to that 4700 mg number than the lower range you're citing. Might that range be based on average intake, rather than "ideal"?



#10 ailsworb

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Posted 11 September 2019 - 04:30 PM

After taking the Vitamin D for a few more weeks, I'm fairly positive that calcium is related to these symptoms, but I'm not finding anything directly linking vitamin b6 and calcium status.

The only studies I've found are about how pyridoxine can be used to reduce the frequency of calcium oxalate stone formation, which implies that b6 could lower calcium, possibly indirectly.



#11 ailsworb

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Posted 19 December 2019 - 05:50 AM

In addition to calcium being necessary for general dopamine synthesis, I've discovered that P5P requires ALP (alkaline phosphatase) to be activated, which is synthesized using molybdenum.

I felt like I was really grasping at straws with this one, but after beginning molyb supplementation I've noticed a very prominent resurgence of what I originally categorized as effects of pyridoxine.

 

I'll have to wait and see if the positive effects continue, though. Maybe someday I'll create a closed loop of supplements that no longer requires any more cofactors.


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#12 ibtisam_midlet

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Posted 19 December 2019 - 10:50 AM

can i ask, how much you took vitamin B6?



#13 ailsworb

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Posted 19 December 2019 - 03:57 PM

50mg/day


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#14 ailsworb

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Posted 11 February 2020 - 12:14 AM

The molybdenum stopped working about a month after I started to take it (go figure) and I began feeling even worse than before. I stopped that and tried a few other things (copper, boron, a few different essential and non-essential amino acids) before stumbling upon D-Ribose, as it's apparently hailed by some as a cure-all for chronic fatigue. Sure enough, it seems to help, but I have no way of knowing whether it's the result of just being stimulating (it's directly involved in ATP mechanism) or if it is actually involved in B6 functioning.

 

Here's the only study I could find linking the two, but I have no clue how applicable it would be to humans:

https://www.ncbi.nlm...les/PMC1224052/

If there is a direct link, it would make sense that so many people with chronic fatigue symptoms would find it helpful, since it has been noted that pyridoxine functioning is reduced in CFS patients:

https://www.ncbi.nlm...les/PMC1297139/


Edited by ailsworb, 11 February 2020 - 12:15 AM.


#15 ailsworb

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Posted 17 February 2020 - 01:23 AM

https://www.longecit...ty/#entry382705

http://www.longecity...-cause-trouble/

 

Well, fuck me. Brain damage and cognitive deficits greatly precede neuropathy, even at more reasonable doses.

So the solution has always been to simply stop supplementing, except now the damage that's been done could take up to 6+ months to reverse itself. Fantastic.



#16 ailsworb

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Posted 16 June 2021 - 02:51 AM

After 1 year of coasting through gradually worsening depression, only now have I suddenly started experiencing signs of improvement. I had only supplemented B6 for 1 year, but it's possible that I was more susceptible to B6 toxicity because I had already accumulated more than the average person through diet, multivitamin formulations, etc. over several of the preceding years.

 

It's been revealed to me that Vitamin B6, Vitamin D, and practically all other vitamin co-factors adhere to a similar principle: excessive dietary intake down-regulates the enzymes that activate them. And the effect can be cumulative. Half-life becomes irrelevant if you're consuming 5,000x what your body requires on a daily basis.

 

It stands to reason, then, that the most logical way of maximizing nutrient efficiency in the body is to restrict dietary intake of those nutrients as much as possible, without going so far that deficiency symptoms manifest.


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#17 joesixpack

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Posted 16 June 2021 - 06:04 AM

I canceled this post

 


Edited by joesixpack, 16 June 2021 - 06:09 AM.






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