A COMMON, TREATABLE NUTRITIONAL DEFICIENCY
Vitamin B12 Deficiency
A deficiency of vitamin B12, important for blood cell production and nerve function, leading to anaemia, fatigue and neurological symptoms. Effectively treated with supplementation.
ABOUT THIS CONDITION
What is Vitamin B12 Deficiency
Vitamin B12 (cobalamin) is a vital nutrient essential for healthy red blood cell production, nerve function and DNA synthesis. The body cannot make B12, so it must be obtained from animal-source foods (meat, fish, eggs, dairy) or supplements. Deficiency is common, particularly in strict vegetarians and vegans, older adults, patients with gut absorption problems, those with pernicious anaemia (an autoimmune condition affecting B12 absorption), gastric surgery patients and those on certain medications including long-term acid-suppressing therapy. Typical features include tiredness and weakness, pale skin, mild jaundice, sore smooth tongue, mouth ulcers, tingling or numbness in hands and feet, balance problems, memory difficulties, mood changes and, in advanced cases, irreversible neurological damage. Diagnosis is confirmed by blood tests measuring B12 levels and may include tests for the underlying cause. Treatment involves vitamin B12 supplementation, oral or by injection depending on cause and severity, and management of any underlying cause. Dr. Patnam Pravallika Reddy provides comprehensive B12 deficiency evaluation and care at Lux Hospitals, Hyderabad.
SIGNS TO WATCH
Common Symptoms
Symptoms that need attention
WHY IT HAPPENS
Causes & Risk Factors
- Inadequate dietary intake in strict vegetarians and vegans
- Pernicious anaemia — autoimmune cause
- Ageing — reduced absorption
- Gut surgery including weight-loss surgery
- Inflammatory bowel disease and coeliac disease
- Long-term acid-suppressing therapy
- Certain other medications affecting absorption
CLINICAL DETAILS
KeyFacts
Blood tests for vitamin B12 levels, complete blood count, and tests for underlying causes
Oral or injection B12 supplementation
May persist if treatment is delayed — early diagnosis important
Lifelong supplementation usually needed
Animal-source foods are the main natural sources
Available at Lux Hospitals, Hyderabad
HOW WE TREAT IT
Treatment Approach
Targeted B12 Supplementation with Cause Identification
The most effective approach is correcting the deficiency with appropriate B12 supplementation (oral or injection depending on cause), identifying and treating the underlying cause, and continuing supplementation long-term in patients with absorption problems or pernicious anaemia.
- 1
Consultation & Assessment
Dr. Pravallika reviews diet, symptoms and risk factors, examines the patient and arranges blood tests including B12 level and complete blood count.
- 2
Treatment Planning
A personalised plan is created with appropriate B12 supplementation and structured workup for underlying cause.
- 3
Medical Management
Vitamin B12 supplementation (oral or injection), treatment of underlying causes and dietary advice.
- 4
Recovery & Follow-up
Regular follow-up with blood tests to monitor response and ongoing supplementation as needed.
AVAILABLE TREATMENTS
Treatment Options
Vitamin B12 Supplementation by Injection or Oral
Vitamin B12 is given by injection in patients with absorption problems, severe deficiency or neurological symptoms, and orally in milder cases due to dietary deficiency.
Long-Term Maintenance in Selected Patients
Patients with pernicious anaemia, gut surgery or significant absorption problems typically need long-term, often lifelong B12 supplementation.
Treatment of Underlying Causes
Identifying and treating underlying causes such as pernicious anaemia, gut conditions or medication-related deficiency.
Dietary Advice
Guidance on B12-rich foods for non-vegetarians (meat, fish, eggs, dairy) and fortified foods for vegetarians and vegans.
Monitoring of Response
Regular blood tests to monitor B12 levels, blood count and neurological recovery guide ongoing therapy.
COMMON QUESTIONS
Frequently Asked Questions
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