migraine after b12 injection Headache: The Link Between Vitamin B12 and Headaches Headaches — Concussion Alliance

Oral Surg

Typically, intramuscular treatment for dietary vitamin B12 deficiency begins with a loading dose followed by maintenance therapy, contrasting with the steady daily doses used in oral treatment due to limited passive absorption

The NIH reports that only about 10 micrograms of a 500-microgram oral supplement are actually absorbed in healthy people due to limitations of stomach acid and intrinsic factor

B12 injections are typically administered intramuscularlyusually in the upper arm or thigh

Methionine plays a role in breaking down fats, helping to prevent the buildup of fatty deposits in blood vessels that might cause coronary artery disease and blockages in the neck and legs