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nitrous oxide exposure can inactivate B12 Important: Do not take folic acid alone when B12 deficiency is possible or uncorrected, as this may worsen neurological damage Avoid measuring serum B12 immediately after injections due to falsely high results Dietary optimisation remains the preferred approach for those without absorption issues

In China, injection procedures that promote the return of gray hair to black hair are attracting great attention

doi: 10.3390/biochem5020018

Theres no need to maximize B12 levels in breast milk, there simply needs to be enough to keep the infant healthy, and a negative correlation with multivitamin use doesnt mean multivitamins were inadequate

Neurological symptoms, including paraesthesia and cognitive changes, improve more gradually and may require six months or longer

Studies show this approach achieves resolution in approximately 60-70% of cases after one injection