is vitamin b12 injection Injections: Benefits and Risks Vitamin b1, b6, and b12

You dont want to just be in the reference range, the optimal range for B12 is much higher and ideally, you want to be above 400, and there does not seem to be an upper limit or toxicity from high Vitamin B12 levels

Within 2 to 3 days of their first injection, most people feel less exhausted

However, B12 levels can rise regardless of whether treatment is effective

Liver disease is a significant cause of elevated B12

Learn about safety, side effects, and how injectable B12 can support your wellness goals

Pernicious anaemia is caused by your immune system preventing your stomach and gut from absorbing B12 from your food