Vitamin B12 Deficiency Quiz
Reviewed By:
Scott Nass, MD, MPA, FAAFP, AAHIVS (GP / Family doctor)
Dr. Nass received dual medical degrees from the David Geffen School of Medicine at UCLA and Charles R. Drew University in Medicine and Science. He completed Family Medicine residency at Ventura County Medical Center with subsequent fellowships at Ventura, University of North Carolina-Chapel Hill, George Washington University, and University of California-Irvine. He holds faculty appointments at Keck School of Medicine of USC, Loma Linda University School of Medicine, and Western University of Health Sciences.
Yoshinori Abe, MD (Internal medicine)
Dr. Abe graduated from The University of Tokyo School of Medicine in 2015. He completed his residency at the Tokyo Metropolitan Health and Longevity Medical Center. He co-founded Ubie, Inc. in May 2017, where he currently serves as CEO & product owner at Ubie. Since December 2019, he has been a member of the Special Committee for Activation of Research in Emergency AI of the Japanese Association for Acute Medicine. | | Dr. Abe has been elected in the 2020 Forbes 30 Under 30 Asia Healthcare & Science category.
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Learn more about Vitamin B12 deficiency
Content updated on Sep 20, 2022
Vitamin B12 deficiency anemia is deficiency of vitamin B12 resulting in insufficient healthy red blood cells. Vitamin B12 is required for the production of red blood cells, which transport oxygen in the body. It can be a result of insufficient B12 in the the diet or inability to absorb B12 in the small intestine, also called pernicious anemia.
Noisy breathing; e.g. wheezing, rattling
Unable to, or have difficulty feeling pain
Recent weight loss
Feel the heart is pounding
Intermittent, crampy abdominal pain
Recent changes in mental state
Abnormalities in sense of taste
Hands and legs became clumsy - I cannot do fine work with them
Your doctor may ask these questions to diagnose vitamin B12 deficiency
Is your breathing noisy; e.g. wheezing, rattling?
Are you unable to, or have difficulty feeling pain?
Have you lost weight recently?
Do you feel your heart is pounding?
Do you have an abdominal (tummy) pain that comes and goes?
Treatment involves dietary modifications, or vitamin B12 supplements in the form of oral medication or injections.
View the symptoms of Vitamin B12 deficiency
Diseases related to Vitamin B12 deficiency
References
Herrmann W, Herrmann M. The Controversial Role of HCY and Vitamin B Deficiency in Cardiovascular Diseases. Nutrients. 2022 Mar 28;14(7):1412. doi: 10.3390/nu14071412. PMID: 35406025; PMCID: PMC9003430.
https://www.mdpi.com/2072-6643/14/7/1412
Reviewed By:
Scott Nass, MD, MPA, FAAFP, AAHIVS (GP / Family doctor)
Dr. Nass received dual medical degrees from the David Geffen School of Medicine at UCLA and Charles R. Drew University in Medicine and Science. He completed Family Medicine residency at Ventura County Medical Center with subsequent fellowships at Ventura, University of North Carolina-Chapel Hill, George Washington University, and University of California-Irvine. He holds faculty appointments at Keck School of Medicine of USC, Loma Linda University School of Medicine, and Western University of Health Sciences.
Yoshinori Abe, MD (Internal medicine)
Dr. Abe graduated from The University of Tokyo School of Medicine in 2015. He completed his residency at the Tokyo Metropolitan Health and Longevity Medical Center. He co-founded Ubie, Inc. in May 2017, where he currently serves as CEO & product owner at Ubie. Since December 2019, he has been a member of the Special Committee for Activation of Research in Emergency AI of the Japanese Association for Acute Medicine. | | Dr. Abe has been elected in the 2020 Forbes 30 Under 30 Asia Healthcare & Science category.
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Seiji Kanazawa, MD, PHD
Obstetrics and gynecology (OBGYN)
National Center for Child Health and Development, Japan