Vitamin B12 deficiency may develop if a person lacks the vitamin from the foods they’re eating. B12 is vital in the production of red blood cells in the body, and also for keeping nerves healthy. If B12 is in short supply in the body, this will effect a person’s red blood cell count and nerves can become damaged. If vitamin B12 deficiency is left untreated, complications, including heart failure, can occur. People who eat a vegan or vegetarian diet may be at risk of the condition because the vitamin is best gained from foods of an animal origin.
Other symptoms of vitamin B12 deficiency
Bupa outlines other symptoms of vitamin B12 deficiency to watch out for:
- Feeling very tired
- Breathlessness even after little exercise
- Heart palpitations
- Headaches
- A reduced appetite
- A sore mouth and tongue.
It adds: “If you have vitamin B12-deficiency anaemia, you may also look pale or jaundiced (have a yellowy tinge to your skin and the whites of your eyes).”
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