Vitamin B12

9 Symptoms of Vitamin B12 Deficiency:

1. Extreme Fatigue

You feel constantly tired, even after a good night’s sleep.

2. Pale or Jaundiced Skin

A lack of B12 can affect red blood cell production, leading to pallor or yellowish skin.

3. Tingling or Numbness

Especially in hands and feet — this happens due to nerve damage from prolonged deficiency.

4. Balance and Coordination Problems

You might feel unsteady or more clumsy than usual.

5. Glossitis and Mouth Ulcers

A swollen, red tongue or painful sores in your mouth can be early signs.

6. Shortness of Breath and Dizziness

A result of fewer red blood cells carrying oxygen through your body.

7. Blurred Vision

Damage to the optic nerve can affect eyesight.

8. Mood Changes

B12 plays a role in serotonin production, so deficiency can lead to depression, anxiety, or irritability.

9. Memory Problems or “Brain Fog”

Trouble concentrating, forgetfulness, and mental confusion can signal low B12.

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More Signs to Watch For:

Heart palpitations

Constipation or diarrhea

Loss of appetite or weight loss

Swollen, smooth tongue

Pins-and-needles sensation

High homocysteine levels (found through blood tests)