The B12 goes into muscle tissue and moves into your blood without needing acid, intrinsic factor, or a working gut
These may include mild digestive changes (nausea, altered bowel movements), increased energy levels that may feel stimulating initially, mild headaches (often related to dehydration), and minor injection site reactions (redness, temporary discomfort)
Critically, there is no rigorous, comparative research to definitively prove the methods are equally effective or interchangeable
You should maintain a routine until your symptoms clear up, and then follow your doctors specific maintenance regimen if you suffer from conditions that lead to B12 deficiencies or already have a deficiency
Your provider can help determine a schedule that best fits your wellness goals
Theres been a lot of talk about B12 and mixed-ingredient lipotropic injections, but neither is without danger nor guarantee