why is vitamin b12 injection so painful Shots in Friso, Sherman, Anna. and Sunnyvale, TX Vitamin B12 Deficiency: Symptoms, Causes
Description
In short, our recommended vitamin B12 shot dosage and frequency is around 1 mg per shot, injected daily for at least 90 days
[DOI] [PMC free article] [PubMed] [Google Scholar] 17.Aksoy P, White TA, Thompson M, Chini EN

What follows is what we know from that review and from the published clinical record

In fact, some even claim that increasing your intake of vitamin B12 can help fight fatigue, boost energy levels, and speed up your metabolism

Pull back on the syringe plunger, allowing the B12 liquid to fill the syringe barrel
