b12 injections surprise az Shots at Home: How, Where & How Often to Inject Yourself Best B12 Injection (Health &

For chemotherapy-induced nausea and vomiting, the usual dose is 8-12mg IV, either administered alone or with other antiemetics before chemotherapy

Nature , 376, 3743 (1995)

10.1007/s00134-018-5147-3 29

This is because B vitamins are crucial in converting food into usable energy (ATP), and correcting a deficiency allows your metabolism to run more efficiently

While the IOM had based B12 needs on the amount required to correct hematological parameters for people with pernicious anemia, the EFSA had almost 20 more years of research to draw on, and concluded that the most suitable approach was basing needs on biomarkers (serum B12, holotranscobalamin, MMA, and homocysteine)