The scientific literature on vitamin B12 dosing varies by experimental model and purpose (e.g., metabolic study, hematologic indices, neurological outcomes)
In summary, the usual dose for Vitamin B12 shots in adults is 1000 mcg (1 mg)
You should experience less fatigue, enhanced energy levels, and fewer aches and pains
However, the primary use of B12 injections around the world, and the main reason people need it so badly, is because of a disorder called pernicious anemia
The subjective 'energy boost' many patients expect is specific to correcting deficiency
The compound is most often taken with meals, as this may improve absorption and reduce the likelihood of gastrointestinal discomfort