Sulfur burps can also occur in certain medical conditions, such as gastroesophageal reflux disease (GERD), intestinal infections like Giardia , irritable bowel syndrome (IBS), or a food intolerance
doi:10.1186/s12933-023-01897-2 Chang HY, Chou YY, Tang W, et al
[13] [14] During physical activity, your muscles naturally increase glucose uptake independent of insulin, creating a beneficial effect alongside metformin's glucose-lowering mechanisms
The thigh can also work well, especially if you prefer sitting down and watching the pen during the injection
Ishikawa et al., 2021)
Possible Side Effects Vitamin B12 injections are generally safe, but minor side effects may occur