Peter Hibberd, M.D., is a doctor whose advice is based on more than 28 years of hospital outpatient and inpatient experience. He is an experienced emergency medicine physician, surgeon, and consultant. Dr. Hibberd is certified by the American Board of Emergency Medicine. He is also a fellow and active member of the American Academy of Family Physicians, an active member of the American College of Emergency Physicians, and a member and fellow of the American Academy of Emergency Medicine. Dr. Hibberd has earned numerous national and international professional certifications, memberships, and awards.
Tags: Cancer | Vitamin Cancer Patients

Is Vitamin B-12 Bad for Cancer Patients?

Tuesday, 19 February 2013 09:50 AM

Question: I am a vegan and have history of breast cancer. I had a mastectomy and chemotherapy 7 years ago. I take Vitamin B-12 every day but recently heard that Vitamin B-12 is not good for people with cancer. Should I stop taking it?

Dr. Hibberd’s answer:
I am glad you have managed with your breast cancer successfully. Vitamin B-12 will not cause your cancer to return, so no problem here. Be careful though, because if you are actually deficient in B-12, you should know whether this is an absorptive problem or a dietary problem.
If it’s dietary, be sure your doctor checks your folate and B-12 levels periodically, because these are often present in unbalanced diets. If it’s an absorptive problem, be sure to work with your doctor to find out what’s causing it. I assume you take oral B-12, so it is most likely your deficiency is a dietary one, but get checked out to be sure.

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Vitamin B-12 won't cause problems for cancer patients, but it's important to identify the cause of any B-12 deficiencies.
Vitamin Cancer Patients
Tuesday, 19 February 2013 09:50 AM
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