aching arm after b12 injection painful why does my hurt pain arm after a shot? B12 Injections for Energy: Benefits – Vitamin Injections b12 injections sore arm Shots

B12 shots might benefit people dealing with: Constant tiredness Low blood cell counts Trouble digesting Pernicious anemia Low nutrient levels Struggles with weight loss A study showed that injecting B12 into the muscle raised levels in the blood faster and kept them higher for longer than taking B12 by mouth in those with absorption problems

The compound works within the body to help reactivate dormant metabolic processes and restore a more youthful rhythm of energy and fat regulation

Patch test any new product first, and discontinue if you notice irritation

Kidney Dysfunction: While the kidneys do not directly excrete vitamin B12 efficiently, impaired renal function may lead to elevated serum B12 levels by reducing the clearance of B12-binding proteins or altering their metabolism, thereby contributing to B12 accumulation 8

Still, if that's what you're getting, then I would suspect that as potentially the problem

Administered through an injection, this vitamin is absorbed directly into the bloodstream for faster, more efficient results