However, when symptoms occur, often due to the underlying condition rather than the elevated B12 itself, they may include 12 : Acne Headaches Anxiety Irregular heartbeats Trouble falling or staying asleep Nausea Fatigue Dizziness The symptoms of high vitamin B 12 are vague
Typical 1000 mcg (1 mg) Dosing Protocol Adults usually get 1000 mcg (1 mg) of B12 through shots
Injection Technique General subcutaneous technique, following established clinical best-practice guidance
What spoiled B12 looks like A vial that is cloudy, discoloured, has visible particles or an unusual smell should not be used
What to expect Week 12 What you may notice: Some users notice subtle changes, slightly less stiffness, faster bounce-back from training
The deficiency can disrupt how the heart muscle "recharges" between beats