needle used for b12 injection How to self-inject intramuscular vitamin - Overview what gauge needle to use

If you are dosing at 0.25 mg with the 5.0 mg/mL concentration, you are drawing only 5 units

This uncomfortable feeling in your arm, along with all the other systemic and local side effects, are signs that your immune system is working, reacting to the vaccine and protecting you from the virus you were just vaccinated against

Liver Sardines Mackerel Salmon Milk Red Meat Fortified cereals Yogurt Swiss cheese What are the Benefits of Vitamin B12

The body can only absorb approximately 1.5 g per dose through the intrinsic factor mechanism, which is why higher doses rely on passive diffusion for additional absorption

For the BMJ authors, the clinical picture is the most important factor in determining whether someone has B12 deficiency