Recognizing the signs of Vitamin B12 deficiency can be crucial for maintaining overall health. Vitamin B12 plays a vital role in red blood cell formation, nerve function, and DNA synthesis. Its deficiency How Vitamin B12 Injections Affect Your Body: Good or Bad? B12 Injections for Energy: Benefits and How It Works AZ IV Medics B12 Shots Side Effects And How To Treat Them B12 deficiency can damage your nervous system with a completely normal blood count. In a landmark NEJM study, 28% of patients with neuropsychiatric B12 damage had no anemia or macrocytosis. B12 runs