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
Replacement therapy for vitamin B12 deficiency: comparison between the sublingual and oral route
Its well-known governmental image makes it easier to get into new markets in more places
Most patients benefit from weekly B12 shots initially, then transition to bi-weekly or monthly maintenance based on their response and lab values
In rare cases, B12 injections can cause more serious side effects
Whilst the individual components (methionine, inositol, choline) play roles in lipid metabolism, there are no large-scale, peer-reviewed studies demonstrating that injectable formulations produce clinically meaningful weight loss or metabolic benefits