Signs of vitamin B12 deficiency that are easy to overlook
Vitamin B12 deficiency can develop gradually, so symptoms are sometimes mistaken for normal aging, stress, or being tired. Importantly, you can have B12 deficiency without obvious anemia.
Common or easily overlooked signs include:
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Persistent tiredness or weakness — B12 is needed for healthy red blood-cell production.
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Pale skin or a slightly yellowish appearance.
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Numbness or tingling in the hands or feet.
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Burning or altered sensation in the feet.
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Balance or walking difficulties.
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Muscle weakness.
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Brain fog or difficulty concentrating.
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Memory problems or confusion.
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Mood changes, including irritability or depression.
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A sore, red, or swollen tongue.
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Mouth ulcers.
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Reduced appetite or unexplained weight loss.
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Changes in vision, particularly in severe or prolonged deficiency
