b12 injections and weight gain shots for loss: Do they work, risks, benefits, more Vitamin B12 shots: Uses, benefits,

Typically, the positive effects last from about a week up to a month, though this can vary based on how your body absorbs and utilizes the vitamin, as well as your overall health

These can include temporary digestive changes, mild headaches (which are often linked to hydration or electrolyte balance), and some muscle soreness as your body adapts to increased fat oxidation

Ovarian hyperstimulation syndrome (OHSS)

Because B12 injections are often categorized as self-pay wellness services, insurance typically only covers the cost if you have a documented medical diagnosis, like pernicious anemia or a severe clinical deficiency