Oral supplements, on the other hand, require ingestion and absorption through the digestive system
It is supplied as a research material and is not authorised, approved, or intended for human or veterinary use, clinical application, diagnostic procedures, or therapeutic purposes
Chemically, vitamin B12 can exist in various forms
Other lipotropic injection side effects include: Headaches and light headedness Stomach upsets such as mild nausea and mild diarrhea Allergic reactions (itching, hives, shortness of breath, wheezing, swelling of the tongue, throat, or mouth) although rare, can also occur
These contraindications may not be apparent to the average person
And if your B12 is already solidly in the optimal range, adding more on top of that does very little