vit b12 injections for weight loss Vitamin Injections: What You Need To Know Vitamin B12 Injections for Energy:

So, the tests you will be asked to get done are- a complete blood count to check if you have any type of anaemia, reticulocyte count to see how many new blood cells are being made in the body, serum bilirubin levels which tell how many cells are being lost as bilirubin is a byproduct of blood cell breakdown and checking amounts of homocysteine and methylmalonic acid higher values of which confirm B12 deficiency

American Journal of Physiology-Heart and Circulatory Physiology

Sequential treatment is simpler and may avoid supplement interactions

Vegans (people who dont consume any meat products) and people lacking intrinsic factors are at risk of vitamin B12 deficiency