If you show a deficiency, your doctor may want to investigate why you are deficient if you are and to gauge how much B12 you might need
doi: 10.1016/j.metabol.2007.03.005
Longer-Term Body Composition Findings in the Literature Body composition data typically gathered through DEXA scans, bioimpedance analysis, or skinfold measurement in research settings generally begins to show measurable shifts over a multi-week study window
Each category works through a different mechanism, carries a different level of clinical evidence, and comes with its own cost and safety considerations, so understanding the distinction matters before choosing one
Systemically, because it involves copper, there is a theoretical risk of copper overload with prolonged, high-dose use without proper cycling