when are b12 injections needed Vitamin Shots Right for You? Vitamin B12 injections for MTHFR:

Maintaining adequate levels theoretically preserves cognitive function during weight loss

Your GP will determine the appropriate formulation (usually hydroxocobalamin 1mg/ml), dosing frequency, and whether home administration is suitable for your circumstances

Cognitive and Mood Disturbances: Vitamin B12 plays a role in brain health, so deficiency can lead to memory problems, difficulty concentrating, depression or irritability

If you want to compare the two methods, start with their dosage amounts

Some individuals report a sensation of body swelling or warmth, but these symptoms typically resolve on their own within a few hours