Daijiworld Media Network – Mumbai

Mumbai, Jun 26: Vitamin B12 is a vital nutrient that supports the production of red blood cells and ensures the healthy functioning of the brain and nervous system. While fatigue, weakness and dizziness are well-known symptoms of vitamin B12 deficiency, experts say some of the earliest warning signs may appear in the feet and legs.

One common symptom is persistently cold feet, even in normal weather conditions. Reduced red blood cell production due to vitamin B12 deficiency can impair oxygen supply and blood circulation, leaving the feet feeling unusually cold. Anaemia and nerve-related complications associated with the deficiency may also contribute to this problem.

Changes in skin colour may be another warning sign. Pale or yellowish skin on the feet could indicate anaemia caused by insufficient vitamin B12. Studies published in the American Journal of Hematology suggest that reduced production of healthy red blood cells can lead to noticeable changes in skin tone.

Vitamin B12 is also essential for maintaining myelin, the protective covering around nerves. According to experts at Harvard Medical School, prolonged deficiency can damage nerves, leading to balance problems, difficulty walking and frequent stumbling.

Persistent swelling, irritation or unexplained discomfort in the feet should also not be ignored. Research published in the Journal of Neurology indicates that symptoms affecting the hands and feet are more common among people with low vitamin B12 levels.

Perhaps the most recognised symptom is a tingling or pins-and-needles sensation in the feet. The National Institutes of Health notes that numbness and tingling caused by vitamin B12 deficiency may become permanent if left untreated due to irreversible nerve damage.

Doctors advise anyone experiencing persistent numbness, tingling, balance issues, cold feet, swelling or unexplained discomfort in the legs and feet to seek medical evaluation. Early diagnosis and treatment can help prevent long-term complications associated with vitamin B12 deficiency.