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(Cobalamin Deficiency)
What is Vitamin B12 Deficiency?
Vitamin B12 Deficiency (Cobalamin Deficiency) occurs when the body does not have enough vitamin B12 to produce healthy red blood cells, maintain nerve function, and support DNA production. If left untreated, it can lead to anemia and nerve-related complications.
Why is Vitamin B12 Important?
Vitamin B12 plays a vital role in:
Red blood cell formation
Brain and nerve function
DNA synthesis
Energy production
Maintaining healthy skin and hair
Causes of Vitamin B12 Deficiency
Common causes include:
Vegetarian or vegan diet with inadequate B12 intake
Poor absorption due to stomach or intestinal disorders
Pernicious anemia
Long-term use of certain medications (such as metformin or acid-reducing drugs)
Gastrointestinal surgeries
Increasing age
Symptoms of Vitamin B12 Deficiency
Symptoms may develop slowly and include:
Fatigue and weakness
Pale skin
Shortness of breath
Dizziness
Tingling or numbness in hands and feet
Difficulty walking or balance problems
Memory issues and poor concentration
Mood changes, depression, or irritability
Sore tongue and mouth ulcers
Who Is at Risk?
Older adults
Vegetarians and vegans
People with digestive disorders
Individuals who have undergone stomach or intestinal surgery
Patients taking long-term metformin or acid-suppressing medications
How is Vitamin B12 Deficiency Diagnosed?
Doctors may recommend:
Complete Blood Count (CBC)
Vitamin B12 blood test
Folate levels
Methylmalonic acid (MMA) test
Homocysteine test
Treatment
Treatment depends on the cause and severity:
Vitamin B12-rich diet
Oral Vitamin B12 supplements
Vitamin B12 injections for severe deficiency
Treatment of underlying medical conditions
Foods Rich in Vitamin B12
Good sources of Vitamin B12 include:
Fish and seafood
Eggs
Milk, yogurt, and cheese
Chicken and meat
Fortified cereals and plant-based milk
Prevention
Eat a balanced diet containing B12-rich foods.
Vegetarians and vegans should consider fortified foods or supplements after consulting a healthcare professional.
Regular health check-ups can help detect deficiencies early.
Conclusion
Vitamin B12 deficiency is a common but treatable condition. Early diagnosis and appropriate treatment can prevent serious complications and improve overall health, energy levels, and nerve function.
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Verified and approved by
Siddiq nisha U. Bsc (Nsg)
Dr.Karthikeyan S. MBBS.,