Vitamin B12 Deficiency

Vitamin B12 deficiency occurs when the body lacks adequate levels of this essential nutrient, which is required for red blood cell formation, DNA synthesis, and proper nerve function. It is particularly common in India due to the largely vegetarian diet, since B12 is naturally found almost exclusively in animal products. Because the body stores B12 in the liver for years, deficiency often develops slowly and can go unnoticed until stores are significantly depleted. Left untreated, it can lead to a specific type of anaemia and, more concerningly, irreversible nerve damage if not corrected in time. The condition is diagnosed with a blood test and is generally well managed with dietary change or supplementation.

The most common symptoms include: Persistent fatigue and weakness; tingling or numbness in hands and feet; pale or yellowish skin; difficulty concentrating or memory problems. Early recognition is key to prompt diagnosis and effective treatment.

No, Vitamin B12 Deficiency is not contagious. It cannot spread through casual contact. However, certain risk factors and genetic predispositions may increase susceptibility.

Treatment options include: Treatment involves oral or intramuscular B12 supplementation; with injections typically used for severe deficiency or malabsorption issues to bypass the need for gut absorption. Dietary counselling to include B12-rich foods such as dairy; eggs. Treatment should always be guided by a qualified General Medicine specialist. Do not self-medicate.

While Vitamin B12 Deficiency cannot always be fully prevented, several measures can reduce risk: Including dairy; eggs; meat.

Consult a General Medicine specialist if symptoms persist for more than a few days, worsen despite home care, or significantly affect your daily activities. Early diagnosis leads to better outcomes.