Rights and permissions About this article Cite this article Grabner, G.F., Xie, H., Schweiger, M
Oral Supplements Efficacy When comparing vitamin B12 injections to oral supplements, the primary advantage of injections is their ability to bypass the digestive system, ensuring rapid and complete absorption
(PubMed) Molloy AM
Many people may develop low B12 levels due to dietary choices, certain health conditions, or age-related changes in absorption
Its compact size resists enzymatic degradation, making it suitable for long-duration laboratory studies of fat metabolism
Medications : Some medications, such as metformin and proton pump inhibitors, can interfere with B12 absorption, necessitating more regular injections