Vitamin B12, Mayo Clinic, Vitamin B12, Fact Sheet for Consumers, National Institutes of Health, Office of Dietary Supplements, Pernicious anemia, Cleveland Clinic, Ganipisetti VM, Naha S
For most researchers, 10mg is an excellent starting vial size
Vitamin B12 injection : For maximum bioavailability, especially in cases of severe deficiency or malabsorption, intramuscular injections of vitamin B12 offer direct absorption and are often prescribed to rapidly restore adequate levels
Environmental Protection Agency
Monitoring, Labs, and Outcome Tracking Baseline labs typically include serum B12, methylmalonic acid (MMA), and homocysteine
The compound is stable at gastric pH