A 2020 study found that those with vitamin B12 deficiency may present with cognitive disorder, though the deficiency was not shown to be a direct risk factor for cognitive decline ( However, results have been mixed and treatment with vitamin B12 wasnt effective at improving brain function in people with normal brain function ( Depression Its been suggested that there may be a link between low vitamin B12 levels and depression
These injections are believed to have a number of potential benefits, including increased energy and improved mood
Unlike oral B12 tablets, B12 injections are rapidly absorbed by the body immediately after administration and do not pass through the digestive system
For instance, hospitalized patients with severe alcohol-related malnutrition might receive 1 mL IM daily for a week
A responsible provider should discuss your medical history, current medications, allergy status, baseline B12 levels, the specific form of B12 being administered, and the expected benefits and risks before proceeding with an injection