why is vitamin b12 injection given Injections: What You Need To Know Do You Need a Prescription

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

Eating plenty of fruit and vegetables containing beta-carotene can help to prevent cancers, but taking high dose supplements of it is linked with an increase in incidence of lung cancer in smokers

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

Systematic Review Registration: CRD42024554513