This information supports, and does not replace, advice from your healthcare professional.
Overview
Vitamin B12 deficiency occurs when the body lacks enough B12, leading to anemia and neurological symptoms.
Symptoms
Fatigue and weakness Pale or jaundiced skin Tingling or numbness in hands and feet Memory loss or difficulty concentrating Glossitis (inflamed tongue)
Causes
Inadequate dietary intake (vegan diet) Pernicious anemia or absorption disorders Gastrointestinal surgery or conditions
Diagnosis
Blood tests for B12 levels Complete blood count (CBC) Homocysteine and methylmalonic acid levels
Treatment
Oral or injectable vitamin B12 supplements Dietary adjustments Treatment of underlying absorption problems