Key Takeaways Vitamin B12 is essential for neurological function and red blood cell formation
Always consult with a professional before considering any new therapeutic approach
When deficiency is suspected based on clinical features (fatigue, paraesthesia, cognitive changes) or risk factors (vegan diet, gastric surgery, certain medications), serum B12 measurement guides appropriate intervention
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This suggests a temporary effect on blood pressure regulation or hydration status rather than a direct neurological impact
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