other illnesses. A blood test can help determine whether vitamin B12 deficiency is involved.
- Tingling or Numbness in the Hands and Feet
One of the most important warning signs is a pins-and-needles sensation in the hands or feet.
Some people describe it as tingling, burning, numbness, or an unusual electric sensation. These symptoms can occur because vitamin B12 supports the health of the nervous system, including the protective covering around nerves.
If the deficiency remains untreated, nerve problems may worsen and affect everyday activities.
Do not automatically assume persistent tingling
