Its a hormone your body naturally produces thats involved in appetite regulation, blood sugar control, and digestion
These extremely rare side effects include: Reactive thrombocytosis during the first week of use in megaloblastic anaemia Hypersensitivity reactions including: rash, itching, exanthema, antibodies to HYDR0XOCOBALAMIN-transcobalamin II Anaphylaxis Hypokalaemia Headache, paraesthesia, tremor Irregular heartbeat (arrhythmias secondary to hypokalaemia) Nausea Vomiting Diarrhoea Fever, chills, hot flushes, dizziness, malaise, pain and / or swelling at the injection site Acne Abnormal colouration of the urine (chromaturia) What should you not do after a B12 shot
Many supplements use cyanocobalamin the cheapest and most common form of B12 but this synthetic version must be converted by the liver before the body can actually use it
Quick Research Math Example Here is the cleanest way to think about the math