Vitamin B12 deficiency risk factors

Vitamin B12 deficiency Microchapters
Home
Patient Information
Overview
Historical Perspective
Classification
Pathophysiology
Causes
Differentiating Vitamin B12 deficiency from other Diseases
Epidemiology and Demographics
Risk Factors
Screening
Natural History, Complications and Prognosis
Diagnosis
History and Symptoms
Physical Examination
Laboratory Findings
Schilling Test
Other Imaging Findings
Other Diagnostic Studies
Treatment
Medical Therapy
Primary Prevention
Secondary Prevention
Cost-Effectiveness of Therapy
Future or Investigational Therapies
Case Studies
Case #1
Vitamin B12 deficiency risk factors On the Web
Most recent articles
Most cited articles
Review articles
CME Programs
Powerpoint slides
Images
American Roentgen Ray Society Images of Vitamin B12 deficiency risk factors All Images X-rays Echo & Ultrasound CT Images MRI
Ongoing Trials at Clinical Trials.gov
US National Guidelines Clearinghouse
NICE Guidance
FDA on Vitamin B12 deficiency risk factors
CDC on Vitamin B12 deficiency risk factors
Vitamin B12 deficiency risk factors in the news
Blogs on Vitamin B12 deficiency risk factors
Directions to Hospitals Treating Vitamin B12 deficiency
Risk calculators and risk factors for Vitamin B12 deficiency risk factors

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Please help WikiDoc by adding more content here. It's easy! Click here to learn about editing.

Overview

For vegans, the risk is very high because none of their natural food sources contain B₁₂. One American study found blood levels below normal in 92 % of vegans, 64 % of lacto-vegetarians, and 47% of lacto-ovo vegetarians. The study applied the old normal values, so in reality a considerably greater proportion may have been deficient.