the body.
2. Pale or Yellowish Skin
A B12 deficiency can cause anemia, which may make the skin appear pale. A slight yellowish appearance can also occur because of increased breakdown of red blood cells.
3. Tingling or Numbness
Tingling or numbness in the hands, feet, or legs is an important warning sign. B12 deficiency can damage the nerves and may cause a “pins and needles” sensation.
4. Difficulty Walking or Poor Coordination
Because vitamin B12 is important for normal nerve function, a deficiency can affect balance, coordination, and muscle
