do b12 injections make you feel sick ⚡️ Feeling tired, sluggish, or run down?⁠ ⁠ Vitamin plays a key role in energy production, metabolism, brain function, and red blood cell formation. B12 deliver this essential vitamin directly B12 Injection – When Is

Vitamin B12 requires an intrinsic factor-mediated active transport for absorption, therefore, lack of or inhibition of intrinsic factor results in pernicious anemia

You will start to notice weight loss and appetite suppression during this phase

people at higher risk of deficiency include older adults, those with gastrointestinal issues that impair absorption, people whove had gastric surgery, long-term strict vegans who do not supplement, and those on certain acid-reducing medicines

From there, vitamin B12 combines with a protein called intrinsic factor so that it can be absorbed further down in the small intestine