Side effects are rare but may include redness or pain at the injection site, itching, and headaches
Because B12 injections are perceived as low-stakes, some facilities devote minimal attention to screening, monitoring, and emergency readiness
B12 is a water-soluble vitamin your body uses to: Make red blood cells (which carry oxygen to your tissues) Keep your nervous system functioning properly Help your body turn food into usable energy Your body can't make B12 on its own you get it from animal-based foods (meat, eggs, dairy) or supplements
What Are B12 Shots
Its not just about what you eat, though
These include orlistat (available on prescription or over the counter as Alli) and, more recently, semaglutide (Wegovy), which is recommended by NICE TA875 for use via NHS specialist weight management services in adults meeting defined BMI and comorbidity criteria