will expired injected b12 hurt you Compounded Methylcobalamin (Vitamin B12) Injection, 5mg/mL Do B12 Shots Expire or

An early sign of stage-4 B12 deficiency is myelopathy (degeneration of the spinal cord)

Not getting enough B12 from foods like leafy greens or having an unhealthy gut can also reduce B12 absorption

Eating a diet of whole foods offers health benefits that a supplement pill does not, says Marlisa Brown, RDN, a certified diabetes care and education specialist based in Bayshore, New York

Most clients benefit from one to two injections per week during the active phase of their program, typically the first six to twelve weeks

Rocio T Martinez-Nunez, et al

Another site for Vitamin injections is the buttocks or the gluteal muscle