b12 injection missed muscle Vitamin Sites: All You Need to Know B12 cancelled. See you in
Description
After an injection, as much B12 as possible is captured by the transport protein in the blood (Transcobalamin II) and delivered to the cells

Energy, focus, and mood may improve quickly, though full benefits can take several days depending on your baseline levels
They ask about diet, injections, liver disease, and cancer risk
B12 helps your body use fat and carbohydrates for energy and makes new protein
2021 Jul 15;12(7):91631

The EFSA bases their recommendations on intake , as distinct from the amount absorbed used by the IOM
