According to the Canadian Society of Intestinal Research, prolonged vitamin B12 deficiency can increase the likelihood of mental illness, damage neurons, and exacerbate multiple sclerosis (MS).
MS is a condition that can affect the brain and spinal cord, which can cause a wide range of potential symptoms, including problems with vision, arm or leg movement, sensation or balance.
The initial warning signs of B12 deficiency include:
- A light tint on your skin
- A sore and red tongue (glossitis)
- Pins and needles (paresthesia)
- Changes in the way you walk and move
- Disturbed vision
How to respond
Consult the NHS if you experience symptoms of vitamin B12 deficiency.
READ MORE: Vitamin B12 deficiency: Swollen tongue, lesions or a hot face may indicate low levels