can b12 injections cause headaches Vitamin Injection Side Effects and Safety What You Need to Know

Administered subcutaneously, its injectable form is rapidly absorbed and distributed to metabolically active tissues, where it specifically binds and inhibits NNMT catalytic activity without interfering with other enzymes in the nicotinamide pathway or NAD+ synthesis

They metabolize through different pathways

Symptoms of vitamin B12 deficiency Symptoms of vitamin B12 deficiency or folate deficiency anaemia Deficiency is more common than most people think, particularly in those who follow a vegetarian or vegan diet, as vitamin B12 is primarily found in animal products

How often should I have a vitamin B12 injection