Vitamin B12 deficiency overview

A deficiency of vitamin B12 causes health problems related to red blood cell production and nervous system health. It can result from absorption issues due to health conditions, surgeries, or an unbalanced diet. Symptoms range from fatigue and gastrointestinal disturbances to nerve damage, which may lead to numbness, tingling, and loss of balance. There can also be changes in mental state, such as hallucinations and confusion in severe cases. Treatment depends on the underlying cause and includes taking vitamin supplements orally or via injections. In some cases, long-term treatment is necessary to ensure vitamin levels are restored and to prevent nerve damage.

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