People aiming to improve energy efficiency, insulin sensitivity, and metabolic flexibility
[DOI] [PubMed] [Google Scholar] 44.Kang E.A., Han Y.-M., An J.M., Park Y.J., Sikiric P., Kim D.H., Kwon K.A., Kim Y.J., Yang D., Tchah H., et al
It alters glenohumeral kinematics and creates impingement
Common side effects Injection-site reactions: mild redness, tenderness, swelling, occasional bruising - usually resolve within hours Skin flushing / warmth - brief, related to vasodilation Transient fatigue in the first 12 weeks of intensive protocols Mild headache - usually dose-related Higher-dose theoretical concerns Copper accumulation - each 2 mg injection adds roughly 0.03 mg of elemental copper, trivial next to the 0.92.2 mg from a normal diet
If your B12 levels are normal, a shot will not make you lose weight on its own
Ultrasound guidance is necessary when performing these injections