difference between b12 injection and tablets What Are Injections? Are They Safe? B12 Shot vs. B12 Pills:

Oral supplements must pass through the digestive process, which requires an intrinsic factor for absorption

You may also be more likely to develop vitamin B-12 deficiency if you have: Atrophic gastritis, in which your stomach lining has thinned Pernicious anaemia, which makes it hard for your body to absorb vitamin B12 Conditions that affect your small intestine, such as Crohns disease, celiac disease, bacterial growth, or a parasite Immune system disorders, such as Graves disease or lupus Been taking certain medications that interfere with the absorption of B12

Many people who receive B12 shots for weight loss notice they feel more motivated to exercise, experience better metabolic function, and see gradual improvements in fat loss

[DOI] [PubMed] [Google Scholar] 71.Kellenberger E, et al