after my second injection of b12 i felt better levels are now great but still suffer numbness : r/B12_Deficiency Seeing Red: Do B12 Injections

Maternal vitamin B12 status and risk of neural tube defects in a population with high neural tube defect prevalence and no folic acid fortification

Additional diagnostic tests like an upper endoscopy or bowel biopsy may also be required

The answer isnt one-size-fits-allit depends on the severity of the deficiency, the treatment method, and how well your body responds

Co-enzyme B12 also interacts with the enzyme methionine synthase (5-methyltetrahydrofolate-homocysteine methyltransferase), required for the conversion of homocysteine to methionine, which is essential for folic acid metabolism and the formation of thymine, which is a component of DNA