U.S. doctors online nowAsk doctors free
Lebanon
A 17-year-old male asked:

Is 420.8 pg/ml of vitamin b12 low in blood ? does this need a supplement ?

1 doctor answer1 doctor weighed in
Dr. Donald Colantino
Internal Medicine 62 years experience
Normal: Normal ranges of vitb12 =200-600pg/ml. . Therefore you don't need to supplement it. However, taking extra B12 does no harm as the body excretes what is not needed.
Last updated Oct 26, 2016

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.