Lower immunity to infection?

[JetPlane]

Do we have lower immunity to infection with a B12 deficiency? Asking this for obvious current reasons. Thank you

[wedgewood]

B12 deficiency certainly lowers your immunity to infections. Your red blood cells do not mature , and are unable to carry enough oxygen . You become breathless and exhausted amongst other symptoms Ideal candidate for any passing infections .

[fbirder]

I wouldn’t have thought so, not if it’s being treated.

After all, PA is caused by an overactive immune system.

[wedgewood]

I took your question to indicate a B12 deficiency , not a treated deficiency .

[palmier]

B12 deficiency can lead to fewer white blood cells, so why not?

"Vitamin B12 deficiency is the most common treatable cause of pancytopenia."

avicennajmed.com/article.as...

[palmier]

"When you’re sick, many of your symptoms are caused from the actions of your immune system — including your white blood cells — as they try to kill the infection. So if your white blood cells are low, you could have an infection but not have symptoms that would prompt you to see your doctor."

healthline.com/health/leuko...

So b12 deficiency could lead to an immune deficiency that makes people not noticing that they have a viral infection?

[elr_ctr]

About the time I was diagnosed, I was suffering with chronic yeast infections that nothing helped as well as catching everything that came my way. My GYN told me that while yeast infections aren't directly related to the b12 deficiency, the fact that I was b12 deficient affected my immune system making it much easier to catch or harder to fight off things. Sure enough, after a couple of months of injections, the yeast infections stopped and I haven't had another. While I am still catching every cold, I am shaking them off easier.

[meitu]

The immune system is a separate system. However in Northern European decedents a combination of underactive and overactive immune reactions occur. See "Immune Deficiency Foundation" for more information. B12 deficiency is seen as caused by an overactive immune system, but a defective immune system usually goes both ways.