Varinderjeet Kaur, MBBS Last updated on: 02-06-2026 See trusted brand Delivery by
If you don't eat animal products, or you have a medical condition that limits how well your body absorbs nutrients, you can take vitamin B12 in a multivitamin or other supplement and foods fortified with vitamin B12
Blood test markers to discuss with a clinician Marker CBC with differential Why it matters Screens blood-cell patterns that may flag infection, anemia, or immune changes before interpreting repair symptoms
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In fact, when she had a blood test to check her vitamin B12 levels, her levels were perfectly normal