propionyl-l-carnitine and acetyl-l-carnitine The carnitine system cancer metabolic plasticity Swanson Propionyl L-Carnitine with Glycine

doi: 10.1080/15384101.2019.1638190 84 PanXGongNZhaoJYuZGuFChenJet al

proper storage is the other half

Quick Reference: Injection site reactions: 15-25% (mild, resolve in 2-24 hours) Nausea: 5-10% (transient, first week) Dizziness: 3-7% (occasional, brief) Serious events: Zero documented in 100+ animal studies Typical dose: 250-500 mcg/day SubQ

But do remember, b12 shots and weight loss go hand in hand with lifestyle modification

Although studies are limited, there is some research to suggest a relationship between Vitamin B12 deficiency, fatigue, depression and foggy brain (Ref) Who is at risk for Vitamin B12 deficiency