Description
What problems does B12 deficiency cause?
- It classically causes a type of anemia (megaloblastic) and a neurological disorder (subacute combined degeneration). These are real and there are multiple unfortunate case reports in the literature of people, including young children, with permanent neurologic damage from B12 deficiency.
- Symptoms of this type of anemia include: fatigue and weakness, weight loss, and sore tongue.
- Symptoms of this neurological disorder include: numbness and tingling of hands and feet, memory changes, poor balance, and depression
- Infants can have developmental delay and failure to thrive (as an aside, these problems are almost always caused by other things)
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