b12 injection causesbodyaches does cause headache Vitamin B12 deficiency can cause symptoms like headaches, fatigue, depressive mood Vitamin B12 Deficiency: Symptoms, Causes
Description
Rapid rise in the blood: Within hours of the injection, the B12 level in your blood rises significantly, giving your body the raw material it has been missing
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Individualized Frequency Adjustments Even though monthly shots are common, your schedule might change
How to inject b12 will depend on which you choose

10.1073/pnas.0308698100 125 SenS.MondalS.ZhengL.SalingerA