The health care provider usually considers a few things before recommending an appropriate vitamin B12 dosage: your diet and current medical condition
These protocols originate from preclinical data extrapolation and clinical experience rather than dose-finding studies 1
Not recommended for use by pregnant and lactating women
Once the deficiency is addressed, a maintenance dose can be given to keep B12 levels within the optimal range
Zheng, H., Patterson, L., Phifer, C
Acknowledgements The authors thank the Vice-Chancellor for Research and Technology of Kashan University of Medical Sciences and the Research Center for Biochemistry and Nutrition in Metabolic Diseases, Kashan University of Medical Sciences, Kashan, Iran (Grant Number: 98138)