your diet provides too little B12 or when your body cannot absorb it properly. Possible causes include:
A vegan diet without adequate B12-fortified foods or supplements.
Pernicious anemia, which interferes with B12 absorption.
Certain stomach or intestinal operations.
Long-term use of medicines such as metformin or proton pump inhibitors.
Do notstop prescribed medication on your own; discuss any concerns with your prescriber.
How Is It Diagnosed and Treated?
Diagnosis involves reviewing symptoms and blood tests, including vitamin B12 levels and checks for anemia. Further testing may help identify the cause.
Treatment may involve B12 tablets or injections. The appropriate approach and duration depend on the cause and whether the nervous system is affected. Food sources include fish, meat, eggs, dairy products, and foods fortified with B12, but dietary changes alone may not correct an absorption problem.
When to Seek MedicalAdvice
Arrange an appointment if you have persistent symptoms,especially numbness,
