should i get a vitamin b12 injection Do You Need Prescription for Injections? Vitamin B12 Shot - Delaware:

Unlike most vitamins, B12 has a uniquely complex absorption pathway: Stomach acid and pepsin release B12 from food proteins B12 binds to R-proteins (haptocorrins) in saliva and stomach Pancreatic enzymes release B12 from R-proteins in the small intestine B12 binds to intrinsic factor (produced by gastric parietal cells) The B12-intrinsic factor complex is absorbed in the terminal ileum A breakdown at any of these five steps causes deficiency which is why B12 deficiency is far more common than dietary intake alone would predict

The remaining 65% either have minimal nausea or adapt within 4-6 weeks

The process usually takes less than 10 minutes

Vitamin B12 (cobalamin) is critical for optimal health

doi:10.1007/s40261-019-00858-6 Asadi P, Zia Ziabari SM, Majdi A, Vatanparast K, Naseri Alavi SA