Vitamin B12 deficiency can cause symptoms like headaches, fatigue, depressive mood, gastrointestinal issues, and more. While vegetarians are at a higher risk of vitamin B12 deficiency, it can affect non vegetarians too. Check How Long Does a B12 Injection Last? UK Treatment Guide Bolt Pharmacy Fun Fact Friday! Ever wondered Why is my B12 injection red? All B12s are cobalamins they have a cobalt atom at the center of a special ring shaped molecule called Always Tired? B12 Injections Could Help Why Do I Feel Worse After My B12 Injection? Causes & Management Bolt Pharmacy