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Scientists Just Found a Major Problem With Vitamin B12 Guidelines – And Your Brain Might Be at Risk
Scitech Daily ^ | February 24, 2025 | University of California - San Francisco

Posted on 02/24/2025 6:19:34 AM PST by Red Badger

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1 posted on 02/24/2025 6:19:34 AM PST by Red Badger
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To: Red Badger

Can we trust getting an MD b12 injection anymore?
Will big pharma add mrna to simply b12 therapy?


2 posted on 02/24/2025 6:22:42 AM PST by George from New England (escaped CT back in 2006)
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To: Red Badger

I took a supplement that had high vitamin B12. It gave me heart rate issues. Too much is bad also.


3 posted on 02/24/2025 6:22:54 AM PST by Varda
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To: Red Badger

That is why the globalists are pushing plant based food. Less B12, more control over the population.

Bird flu is a hoax just like the scamdemic as well.


4 posted on 02/24/2025 6:23:31 AM PST by AbolishCSEU (Amount of "child" support paid is inversely proportionate to mother's actual parenting of children)
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To: Red Badger

Interesting article. Couldn’t find a supplement dosage recommendation in the article though. I am on a typical 50+ mens multivitamin and the B12 is like 1000% of RDA, so maybe not too bad?


5 posted on 02/24/2025 6:23:59 AM PST by HombreSecreto (The life of a repo man is always intense)
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To: George from New England

Just start taking the super B complex from CVS. We take it everyday as part of our supplement protocol.


6 posted on 02/24/2025 6:25:40 AM PST by Georgia Girl 2 (The only purpose of a pistol is to fight your way back to the rifle you should never have dropped)
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To: HombreSecreto

Just checked my vitamins and it’s 260% of RDA......


7 posted on 02/24/2025 6:29:21 AM PST by Red Badger (Homeless veterans camp in the streets while illegals are put up in 5 Star hotels....................)
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To: Georgia Girl 2

B12 only does the body good when injected


8 posted on 02/24/2025 6:30:03 AM PST by George from New England (escaped CT back in 2006)
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To: Georgia Girl 2

Turns your Pee bright yellow ,LOL


9 posted on 02/24/2025 6:30:14 AM PST by butlerweave
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To: Red Badger
My daily multi vitamin only has 7.2 mcg, which they say is 300% daily value.

Wife and I each take a 5000 mcg supplement each day. You put it under your tongue and let it dissolve. Supposedly you get more B12 letting it absorb into your mouth's membranes. Stomach acid destroys most of it (I guess).

10 posted on 02/24/2025 6:30:40 AM PST by jeffc (Resident of the free State of Florida)
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To: Red Badger

I have a stash of B12, take half a dose now and then, but the label says 1 pill is 200,000% of the MDR and I really don’t feel that needy.


11 posted on 02/24/2025 6:31:35 AM PST by Buttons12
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To: jeffc
Adjusted for factors like age, sex, education...

"education"?

12 posted on 02/24/2025 6:32:15 AM PST by jeffc (Resident of the free State of Florida)
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To: Varda

“I took a supplement that had high vitamin B12. It gave me heart rate issues. Too much is bad also.”

I take a 1000 mg tablet of B12 every day. I also take Zinc and Turmeric.


13 posted on 02/24/2025 6:32:27 AM PST by EQAndyBuzz (Privatize the administrative state!)
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To: EQAndyBuzz

I think I need more zinc. My vitamin says it’s only 35% of RDV...


14 posted on 02/24/2025 6:34:22 AM PST by jeffc (Resident of the free State of Florida)
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To: Buttons12

Correction, that’s DV not MDR.


15 posted on 02/24/2025 6:35:25 AM PST by Buttons12
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To: Red Badger

Given the sources of B12 in food, the primary group vulnerable are the stupid (i.e., liberals).

Given my diet, there’s no risk whatsoever.

So, thanks for the health affirmation bump!


16 posted on 02/24/2025 6:38:42 AM PST by logi_cal869 (-cynicus the "concern troll" a/o 10/03/2018 /!i!! &@$%&*(@ -)
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To: Red Badger

B12 is not bioavailable orally, that’s why any elevated doses are useless. Intravenous is a way to go with B12.


17 posted on 02/24/2025 6:39:19 AM PST by exinnj
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To: Red Badger

It appears that the author of the study did not consider that stomach acid destroys B-12, especially if the parietal cells in the fundus of the stomach that produce the acid don’t also produce “intrinsic factor.”

Thus, people who are taking proton pump inhibitors often are B-12 deficient as they influence the production of acid in the parietal cells.

Intrinsic factor attaches to the B-12 like an enteric coating that stops the stomach acid from destroying the B-12. When the chime from the stomach passes the bile ducts and enters the small intestine, the alkaline solutions from the liver, pancreas, and gall bladder neutralize the acid so the intrinsic factor can dissolve.

Thus if the chime stays acid in the small intestine, B-12 will not be absorbed.

The injections bypass the stomach and small intestine, thus they have been used for years to treat B-12 deficiency.

Problem is, there are medical problems that need to be addressed such as stomach cancer that causes the parietal cells to malfunction, causing the B-12 deficiency.

It is better to find the root cause and treat it, rather than just treat the deficiency.

I think that the B-12 deficiency is the leading cause of depression in the elderly.

People who have intestinal bypass also must address vitamin deficiencies due to lack of absorption.

The G-cells or gastrin cells in the lining of the stomach indirectly cause the stomach to produce acid. I say indirect as the G-cells cause a histamine increase in the bloodstream (they function like a hormone) that stimulates the parietal cells to produce acid and intrinsic factor.


18 posted on 02/24/2025 6:41:35 AM PST by tired&retired (Blessings )
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To: tired&retired

Sorry for typo.. AI changed chyme to chime...


19 posted on 02/24/2025 6:43:32 AM PST by tired&retired (Blessings )
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To: EQAndyBuzz

I was taking 25mcg which is 1042% of recommended daily amount. I also take zinc. I didn’t stop the zinc but when I stopped the high B supplement the heart rate issue went away in 24 hrs.
I did have a heart attack so I may have been particularly vulnerable to excess B.


20 posted on 02/24/2025 6:48:31 AM PST by Varda
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