b12 injection triggers migraine Headaches — Concussion Alliance Vitamin B12 shots: Uses, benefits,

There is no established evidence that continuous use is either necessary or safe over long horizons

Hydrochloric acid and/or sodium hydroxide may have been added during manufacture to adjust the pH (range 4.5-7.0)

High-dose oral therapy (10002000 micrograms daily) can be effective even in pernicious anaemia, as approximately 1% of B12 is absorbed through passive diffusion independent of intrinsic factor

Ramsden D

If someone else is giving the injection, it may also be administered into the deltoid muscle (upper arm) or the gluteal muscle

B12 helps convert the food you eat into glucose, which your body uses for energy