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People who are vitamin B12 deficient may also experience confusion, depression or anemia
See our tirzepatide research guide for comparison context
No long-term human safety data: The absence of evidence of harm is not evidence of absence
For long-term benefits, such as improvements in fatigue, cognitive function, and overall well-being, it may take a few weeks to months of regular B12 injections
If you feel unwell alongside a high result, the symptoms are much more likely to come from whatever caused the elevation, such as liver disease or a blood disorder, than from the vitamin
Compliance with these standards is what allows researchers to trust the consistency of their reagent supply
