does b12 injection cause headache I've had a migraine since Sept 4th. I took a that day (prescribed by my doctor) so I'm wondering if it's related or coincidence. I'm scared to take another one headache after vitamin b12 injection

With that in mind, here is what patients who are correcting a deficiency often report

This deficiency is primarily associated with food-bound malabsorption and a diet lacking in vitamin B-12, which is found mainly in meat, eggs, and milk

Injectable medicines should be administered by appropriately trained healthcare professionals in clinical settings with emergency resuscitation facilities available

A Palatable Source of Pure, High Quality Cyanocobalamin Vitamin B12 traditionally has been administered parenterally for chronic enteropathies and EPI

PMC 5788147

Lipotropic injections are used alongside not as a replacement for a reduced-calorie diet and physical activity