What are the symptoms of B12 deficiency?

1. Fatigue and weakness

2. A smooth-appearing tongue and mouth sores
3. Mood changes
4. Numbness or tingling in the hands and feet (called paresthesias)
5. Blurry vision caused by malfunctioning optic nerves
If an individual has developed a B12 associated anemia then profound fatigue or weakness, loss of breath, pale skin, and dizziness can occur.

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