If you are not deficient, a B12 injection does not add measurable energy or speed up weight loss
Inflammopharmacology 7:114 Lovric-Bencic M, Sikiric P, Hanzevacki JS, Seiwerth S, Rogic D, Kusec V, Aralica G, Konjevoda P, Batelja L, Blagaic AB (2004) Doxorubicine-congestive heart failure-increased big endothelin-1 plasma concentration: reversal by amlodipine, losartan, and gastric pentadecapeptide BPC157 in rat and mouse
Your calculations can be perfect, your technique impeccable, but your results will be compromised from the start
A pig pharmacokinetic study reported confusing oral bioavailability values exceeding 100%, which the authors attributed to high data variability
Some individuals benefit from periodic treatments