10 Warning Signs of Vitamin B12 Deficiency You Should Never Ignore…see more

day.

Of course, fatigue has many possible causes, including poor sleep, stress, iron deficiency, and other medical conditions. Persistent fatigue deserves proper evaluation rather than assuming it is caused by B12.

2. Tingling or Numbness in the Hands and Feet

Vitamin B12 is essential for maintaining healthy nerves.

When levels become too low, nerve function can be affected, sometimes producing unusual sensations known as paresthesia.

These may include:

Tingling in the fingers.

Numbness in the toes.

A pins-and-needles sensation.

Reduced sensitivity in the hands or feet.

These symptoms should not be ignored, particularly when they persist or gradually become more noticeable.