does b12 injections need to be refrigerated Shots at Home: How, Where & How Often Inject Yourself B12 vitamin Store Storage Instructions
Description
Levels below the borderline range (150-180 pg/mL) are considered early B12 deficiency, and when vitamin B12 drops below 100 pg/mL, it clearly indicates a deficiency

While less common, high levels could suggest liver dysfunction, leukemia, or excessive supplementation

Zugravu, C.-A., et al

10.2337/db18-0780 15 BruckbauerA.BanerjeeJ.CaoQ.CuiX.JingJ.ZhaL.et al (2017)

& Hahm, K

have agreed on the journal to which the article has been submitted
