While B12 does not directly cause weight loss, correcting deficiency restores normal energy metabolism and reduces fatigue that accompanies calorie restriction
There are some caveats, though, and for balance I will also look at a big new safety study, Xie et al , that pushes back but only a bit
Medication injected into lumpy tissue may not absorb consistently, which can lead to unpredictable blood sugar levels, especially for patients who also take insulin along with GLP-1
Depending on individual effectiveness and tolerance, the dose may be increased to 0.5 mg weekly after the initial period, and further to 1 mg or 2 mg if needed
Furthermore, some clinical evidence suggests that a one-hour infusion of niacin can reduce systolic, diastolic, and mean blood pressure in hypertensive patients