U.S. doctors online nowAsk doctors free
NY
A 83-year-old male asked:

Can low vitamin b12 cause irregular heart beat?

3 doctor answers4 doctors weighed in
Dr. Oscar Novick
Pediatrics 60 years experience
B12 deficiency: Vitamin B12 deficiency can cause pernicious anemia which in turn can cause irregular heart beats.
Created for people with ongoing healthcare needs but benefits everyone.
Dr. Steven Ajluni
Cardiology 37 years experience
No: B12 is involved in blood cell formation and nervous system function. Its deficiency can result in macrocytic (large blood cell size), and a host of neurological and GI symptoms. Some feel stamina and energy level might be affected. No connection to irregular heartbeat.
Created for people with ongoing healthcare needs but benefits everyone.
Dr. Elden Rand
Cardiology 23 years experience
No: B-12 deficiency by itself would not be expected to cause an irregular heart rate. B-12 deficiency results in anemia, which may result in a faster heart rate, and increased catecholamines (such as adrenaline). I suppose the increased adrenaline could make one more likely to have pvcs. This is not a major reported problem associated with b-12 deficiency. Neuropathy would be much more concerning.
Created for people with ongoing healthcare needs but benefits everyone.

Related questions

A 39-year-old member asked:
What does vitamin B12 do for my heart?
1 doctor answer1 doctor weighed in
A 32-year-old male asked:
Can thiamine vitamin b1 cause increased heart rate?
1 doctor answer1 doctor weighed in
A 47-year-old member asked:
What vitamin supplements or herbs cause a slower heart rate?
1 doctor answer2 doctors weighed in
Last updated May 12, 2017

Disclaimer:

Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.