why is vitamin b12 injection given Injections: What You Need To Know Vitamin B12 Injection Dosage |

Systematic Review Registration: CRD42024554513

For Nerve Damage: Vitamin B12 can be injected under the skin at the target regions of nerve damage

So people at greatest risk for deficiency include those with low stomach acid (e.g., older adults and people on proton pump inhibitors or antacids) or low IF production (known as pernicious anemia), people on medications that interfere with B12 absorption (such as metformin), people who have had gastric surgery, those with GI conditions that impair nutrient absorption (like celiac or Crohn's disease), and people on vegan and vegetarian diets

NPJ Vaccines 9 , 143 (2024)

Three quarters of all mothers had less than adequate vitamin B 12 blood levels at baseline and there were no differences between the two groups