Vitamin B12 and Folate Deficiency
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Symptoms
The symptoms associated with B12 and folate deficiency are frequently subtle and nonspecific. They are related to the resulting macrocytic anemia, nerve involvement, and to malabsorption. Patients with an early deficiency may be diagnosed before they experience any overt symptoms, while other affected patients may experience a variety of mild to severe symptoms that can include:
Confusion, paranoia
Diarrhea
Dizziness
Fatigue, weakness
Loss of appetite
Paleness
Rapid heart rate
Shortness of breath
Sore tongue and mouth
Tingling, numbness, and/or burning in the feet, hands, arms, and legs (with B12)