will a b12 injection alter with lab draws The New Vitamin Deficiency Test B12 Shots at Home: How,
Description
Those who've had certain surgeries: Gastrointestinal surgeries may reduce intrinsic factor production, limiting B12 uptake from food or oral supplements

What if Im a Vegetarian or Vegan and dont eat meat or dairy products

So, don't freak out when you see the 60s, even in the 70s, depending on how high your testosterone is
No additional steps are needed beyond the basic process described above