Staging vitamin B-12 (cobalamin) status in vegetarians
[DOI] [PubMed] [Google Scholar] 11.Zhang Y, Proenca R, Maffei M, Barone M, Leopold L, Friedman JM
It is essential for DNA synthesis, red blood cell formation, and neurological function
If you are a vegan, you may wish to consider getting one of these injections to ensure that your body is operating at its optimum level
How quickly will I feel the effects
Other reported effects include: Headaches and dizziness Nausea and gastrointestinal discomfort Allergic reactions to B12 formulations (rare) If you experience symptoms suggesting a severe allergic reaction (difficulty breathing, severe rash, swelling of face/throat), seek emergency medical attention immediately by calling 999 or attending A&E