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why do the elderly need b12 injections Vitamin Injection Dosage for Adults: Guidelines Vitamin B12 Dosage for Seniors:
Description
The suggested daily intake of niacin is 15 to 20 mg/day (, , )

(vii) the patient uses vitamin B12antagonistic medicines

That is a lot of liquid going subcutaneously

Pathogenic mutations in MTHFR gene have been associated with severe MTHFR deficiency
