b12 injection versus pill Efficacy of sublingual and oral vitamin intramuscular administration: insights from a systematic review and meta-analysis Ask the doctor: B12 shots

However, if you do have blood work done note that the drawback is that the current widely used test to check B12 levels only measures the total amount o vitamin B12 in your blood, meaning, it measures the forms of active B12 which your body can use and process as well as the inactive forms which cannot

Many individuals benefit from using both injections in a combined protocol , especially in medically supervised wellness or weight loss programs

Blood pressure monitoring is advisable

Absorption Compared to an oral vitamin B12 tablet, a vitamin B12 injection solution does not pass through the digestive system to be processed