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A 32-year-old member asked:

What causes a vitamin b12 deficiency?

1 doctor answer6 doctors weighed in
Dr. Evan Hirsch, MD
Integrative Medicine 15 years experience
Multiple causese: There are several causes: low stomach acid, pernicious anemia, poor consumption of foods containing B12 and a genetic predisposition that requires more B12 like mthfr gene defect.
Created for people with ongoing healthcare needs but benefits everyone.

Similar questions

A 43-year-old member asked:

Can vitamin B12 deficiency cause migraines?

2 doctor answers4 doctors weighed in
Dr. Scott Bolhack
Wound care 36 years experience
B12: B12 deficiency is associated with neuropathies and non-specific neurological symptoms such as irritability, fatigue, depression, and psychosis. It is not associated with migraine headaches, per se.
Created for people with ongoing healthcare needs but benefits everyone.
A 44-year-old member asked:

Vitamin B12 deficiency causes itching, what can I do?

1 doctor answer2 doctors weighed in
Dr. Ed Friedlander
Pathology 45 years experience
Decisive treatment: Don't know if it's the cause of your itch, if you are B12 deficient, either from an ill-advised experiment with a vegetarian lifestyle without supplementation, or pernicious anemia or harboring a fish tapeworm, you had better start getting supplemented now and continuing or you are going to end up with brain damage. Forgive my frankness, and i hope your physician made this clear as well.
Created for people with ongoing healthcare needs but benefits everyone.
A 47-year-old member asked:

Can having vitamin B12 deficiency cause OCD symptoms?

1 doctor answer7 doctors weighed in
Dr. Lynne Weixel
Clinical Psychology 37 years experience
Not at all likely: Almost no chance of a direct link, but... We do know that: 1) the b vitamins are important to nervous system functioning. 2) B12 can make a noticeable difference in how good one feels. 3) deficiencies are (by definition) good to correct. So, do try to improve your diet and even supplement nutrients that are hard to get enough of. See a professional for ocd treatment too.
Created for people with ongoing healthcare needs but benefits everyone.
A 31-year-old member asked:

Will a vitamin B12 deficiency cause infertility?

2 doctor answers4 doctors weighed in
Dr. Jessica Scotchie
Specializes in Obstetrics and Gynecology
No: No, but b vitamins are important for healthy organ development in early pregnancy. It is important to take supplemental folic acid, and consider a b complex vitamin as well, to support normal organ development if you are reproductive aged woman.
Created for people with ongoing healthcare needs but benefits everyone.
A 44-year-old member asked:

Who is at risk of vitamin B12 deficiency?

2 doctor answers5 doctors weighed in
Dr. Bryan Levey
Pediatrics 28 years experience
Many: The classic B12 deficient people are severe alcoholics and vegan type vegetarians. Obviously, the reason for the deficiency is different in the two groups. Vegans simply don't eat enough B12 containing foods. Alcoholics are a bit more complicated than that.
Created for people with ongoing healthcare needs but benefits everyone.
Dr. Jeffrey Kass
Podiatry 29 years experience
Diabetics taking metformin should be monitored as well as this is a reported side effect of the medication.
Sep 29, 2012

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Last updated Jun 29, 2018

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