Vitamin B12 plays a crucial role in various bodily functions, including

1. Energy production: Converts food into fuel (glucose) for energy.

2. Fat and protein metabolism: Helps the body use fats and protein.

3. Healthy skin, hair, eyes, and liver: Necessary for maintaining healthy skin, hair, eyes, and liver.

4. Brain and nervous system function: Plays a vital role in the normal functioning of the brain and nervous system.

5. Cellular metabolism: Needed in the metabolism of every cell in the body.

Signs of Vitamin B12 Deficiency:

1. Frequent dizziness and vertigo

2. Chronic forgetfulness

3. Sluggishness and muscle weakness

4. Pale complexion

5. Pins and needles sensation

6. Numbness or electric shock waves

7. Fatigue

8. Vision changes

9. Shortness of breath

10. Headache

11. Stomach upset

12. Weight loss

13. Mood swings

14. Dry mouth

15. Ringing in the ears (tinnitus)

16. Difficulty sleeping

17. White nails (may indicate anemia)

Food Sources of Vitamin B12:

1. Fish (haddock, tuna)

2. Dairy products (milk, cheese, yogurt)

3. Vitamin B12 dietary supplements (preferably with water, after eating)

Note: Elderly people may require larger amounts of vitamin B12 due to decreased absorption with age. Pregnant and breastfeeding women should also ensure adequate intake.