Fatigue is a common symptom, as B12 helps in energy production. Low levels can lead to persistent tiredness.
Muscle weakness or a feeling of general weakness can indicate a deficiency of B12.
Shortness of breath, especially during physical activity, can be linked to low B12 levels.
A deficiency in B12 may cause nerve issues, resulting in tingling or numbness in hands and feet.
B12 is essential for brain health, and a lack of it can result in memory loss or confusion.