why is vitamin b12 injection given Best Site: Administering B12 Shots The Advantages of B12 Injections

Medical Conditions, Surgeries, and Medications Lack of intrinsic factor (a protein made in the stomach thats needed for B12 absorption) - this condition is called pernicious anemia Thyroid disease HIV/AIDS (human immunodeficiency virus/acquired immunodeficiency syndrome) Autoimmune diseases like type 1 diabetes, where the immune system in the body attacks its own tissues Gastric bypass surgery (weight loss surgery) Chronic gastritis surgery Certain medications like heartburn drugs (proton pump inhibitors) which reduce stomach acid production Who Is At Risk of Vitamin B12 Deficiency

Some people with COVID-19 have reported having a metallic taste as a symptom

If I don't use the deltoid I'v found that subQ injections with a smaller gauge insulin syringe in the belly fat to be a less uncomfortable option

References Abdelwahab, Omar Ahmed, et al

A basic supplement stack of a multivitamin, omega-3 fatty acids, magnesium, and a probiotic can support overall health during rapid weight loss