On the other hand, if convenience and cost are top priorities, oral supplements are a viable option for maintaining good health
Inject with confidence knowing the anatomy is working in your favor
Most patients see results the very next or second day after receiving their B12 shots, with improvements including boosted energy, clearer thoughts, and better sleep
You can have vitamin B12 deficiency anemia if you don't get enough vitamin B12 in your diet from foods like milk, eggs, and meat, or if your body can't absorb B12 because of a health problem
It will take up to 6 hours to return to a BAC of 0.0
Endocrinology 152 , 4858 (2011)