U.S. doctors online nowAsk doctors free
Brooklyn, NY
A 55-year-old male asked:

Last blood test indicates high b12 level of 1957 .the range is 211-911. have taken b12 supplemental for years is this harmful to liver & kidney?

1 doctor answer2 doctors weighed in
Dr. Su Fairchild
Integrative Medicine 24 years experience
Safe: Ideal serum B12 levels are 800 or more. B12 is not toxic. Your levels are fine (I have seen higher).

90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more. Get help now:

Ask doctors free
Educational text
Free
Talk to a doctor
24/7 visits - just $39!
50% off with $15/month membership

90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more. Get help now:

Ask doctors free
Educational text
Free
Talk to a doctor
24/7 visits - just $39!
50% off with $15/month membership
Last updated Jul 27, 2020

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.