Intrinsic factor, Medline Plus, Vitamin B12, Fact Sheet for Consumers, National Institutes of Health, Office of Dietary Supplements, Vitamin B12, Fact Sheet for Health Professionals, National Institutes of Health, Office of Dietary Supplements Pawlak R
If you or your spouse have employer-sponsored health insurance from active employment, you may qualify for a Special Enrollment Period (SEP) that allows you to delay Part B without penalties
According to the National Institute of Health, Office of Dietary Supplements, we should be getting about 2.4 mcg of vitamin B12 a day, unfortunately about 20% of the population is not getting an adequate amount of B12 in their diets
A provider-supervised taper or switch to oral B12 supplementation is a reasonable alternative if MIC B12 proves unsuitable
doi: 10.1080/00480169.1998.36089
Jrgensen ME, Bjerregaard P, Gyntelberg F, Borch-Johnsen K, Backer V, Becker U, Jrgensen T, Mulvad G