why are my b12 injections not working Will Injection Work Right Away? Why do I feel worse

Or, take a Vitamin B12 shot only under the supervision of a doctor

Because cereals and grains tend to be higher in selenium, people who follow grain-free diets and eat non-processed foods may also be at a greater risk of selenium deficiency

Vitamin B12 helps the neurons that can help create and regenerate the nerve fiber and sheaths that can protect the neurons and speed the brain processing

First-time users or those with sensitive constitutions are recommended to start at 50 mg daily for 12 weeks to observe body tolerance

doi: 10.1158/0008-5472.CAN-20-1641 12 AlborziniaHFlrezAFKrethSBrcknerLMYildizUGartlgruberMet al