1 Vitamin B12 deficiency can lead to anaemia which can cause fatigue, weakness, shortness of breath, and pale skin.

2 B12 deficiency can damage nerve cells, leading to tingling, numbness, or burning sensations in the hands and feet.

3 B12 deficiency can lead to cognitive impairment, including memory problems, difficulty concentrating, and mood changes.

4 Deficiency in vitamin B12 can cause a smooth, glazed appearance of the tongue, also known as glossitis.

5 B12 deficiency can also cause mouth ulcers, which are small, painful sores that develop on the lining of the mouth vitamin B12 deficiency can also lead to vision problems.

6 Severe anemia due to B12 deficiency is clear when you see pale or even jaundiced skin tone.

7 Shortness of breath is caused because of the reduced oxygen-carrying capacity of the blood, a consequence of B12-deficiency anemia.

8 Chronic dizziness or a feeling of unsteadiness when walking may result from compromised neurological function.



Sources - https://www.dnaindia.com/web-stories/health/vitamin-b12-8-symptoms-of-b12-deficiency-1700838664149