Comparative analysis of vitamin B 12 levels and effects of its deficiency in selected adult population diagnosed with various clinical conditions

ABSTRACT

Back ground vitamin B12 deficiency has been associated with various clinical conditions and co-morbidities however none of the individual symptom, or group of symptoms could be ascertaining directly to its declined status. Mostly older population is affected and documented causes of deficiency are hematologic or neurological, followed by gastrointestinal and a possible altered vascular symptoms