Injections bypass the gut, so they are the better route for malabsorption, while oral B12 can be enough for mild low intake
Results Thirteen studies were included in the meta-analysis, with a total of 4275 patients
After initial repletion, a maintenance dose is given, often 1,000 mcg intramuscularly every month or every 2 to 3 months, to prevent recurrence of deficiency
More specifically, clinical research has clearly demonstrated methionines ability to strongly improve the alcohol-induced histological changes in the liver
Hydroxocobalamin converts to both active B12 forms and lasts longer in your body than other types
Keep in mind that many health insurance plans do not cover the cost of vitamin B12 injections when used for lifestyle or wellness purposes, so it's important you speak with your healthcare provider and insurance company