Groups at genuine risk of deficiency include vegans, older adults, people with pernicious anaemia, those on long-term metformin, and individuals who have had gastric surgery
Taking compounded semaglutide and vitamin B12 may enhance its effects, as B12 helps maintain energy levels and supports nervous system health
Before each injection, you clean the vial top with alcohol, use a new sterile needle, and inject the water into the powder vial to reconstitute it
Trends in Cell Biology 20 , 410417 (2010)
In short, the difference between oral supplementation and injection is that an injection will provide a higher dose of B12 at regular intervals, whilst oral supplements have a lower dosage and can be taken every day