B12 is a water-soluble vitamin the body uses for red blood cell formation, nerve function, and energy production
your body will flush out what you cant use

NICE-recommended weight management strategies include: Dietary intervention aiming for a 600 kcal/day deficit through reduced portion sizes, limiting energy-dense foods, and increasing fruit and vegetable consumption Physical activity building up to 150300 minutes of moderate-intensity aerobic activity weekly, plus muscle-strengthening activities on at least two days weekly, in line with UK Chief Medical Officers' guidelines [10] Behavioural approaches including self-monitoring, goal-setting, and addressing emotional eating patterns Commercial weight management programmes such as those meeting NICE quality standards (QS127) Very-low-calorie diets in specific circumstances, under clinical supervision and for limited periods For patients with a BMI 30 kg/m (or 27.5 kg/m in those of South Asian, Chinese, or other Asian family origin) who have not achieved adequate weight loss through lifestyle measures alone, pharmacological interventions may be considered

Of these 50 semaglutide-treated patients that developed anti-semaglutide antibodies, 28 patients (1.6% of the overall population) developed antibodies cross-reacting with native GLP-1.The in vitro neutralizing activity of the antibodies is uncertain at this time
One drop under the tongue daily was how my regimen began, and upon doing so, I experienced debilitating fatigue
Mounjaro is administered as a once-weekly subcutaneous injection, which may lead to this misconception, as vitamin B12 deficiency is also commonly treated with injections