can b12 injections make you feel tired Why Do I Worse After My Injection? Causes & Management – Bolt Pharmacy Benefits of Vitamin B12 Shots
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Its also important to focus on hydration to minimise side effects like constipation, heartburn, indigestion, and nausea

Causes of Vitamin B12 Deficiency Vitamin B12 deficiency can occur due to a range of dietary, medical, and lifestyle factors
Becker T., University of Ulm, Department of Psychiatry and Psychotherapy II
Very easy/fast process
People who suffer from thinning of the stomach lining, pernicious anemia, Crohn's disease, celiac disease, or immune diseases such as graves disease or lupus can also suffer from b12 deficiency
