A 40-year-old male asked:
i have been on ppi meds for 7 yrs and worry about b12. i had labs with mcv=87.7 & rdw=14 (high on my report). am i low on b12? is it ok to supplement
1 doctor answer • 3 doctors weighed in
Internal Medicine 31 years experience
The way to know: If B12 deficient is to be tested. A high MCV (usually over 100, but not always) is suggestive. I wouldn't take B12 without being deficient.
4860 viewsReviewed >2 years ago
Last updated Sep 25, 2016
Connect with a U.S. board-certified doctor by text or video anytime, anywhere.
$15 per month
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.