b12 injection knot Ever had a muscle here? : r/migraine Best Vitamin B12 Injection Site:
Description
Side effects are typically mild injection-site reactions, flushing, increased heart rate, nausea, headache
This allows the vitamin to directly enter the blood stream without having to bind with intrinsic factor
J Clin Med
Vitamin B12 side effects Side effects from vitamin B12 supplementation are rare, and only occur with B12 injections, not oral supplementation, Allen says
