NY
A 83-year-old male asked:
Can low vitamin b12 cause irregular heart beat?
3 doctor answers • 4 doctors weighed in

Dr. Oscar Novickanswered
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.
5.1k viewsAnswered >2 years ago

Dr. Steven Ajlunianswered
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.
5.1k viewsReviewed >2 years ago

Dr. Elden Randanswered
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.
5.1k viewsAnswered >2 years ago
Last updated May 12, 2017
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