Proponents of B12 shots claim they turbocharge the metabolism (read: make you thinner), strengthen the immune system, and help cure fatigue, insomnia, even depression
This impairment of DNA synthesis affects the rapidly dividing cells of the bone marrow earlier than other cells, resulting in the production of large, immature, hemoglobin-poor red blood cells (macrocytosis), as well as effects on white blood cells, including abnormal (hypersegmented) neutrophils and reduced overall cell counts (pancytopenia)
If the metallic taste is linked to a vitamin B12 deficiency then a number of other symptoms may accompany it
Working with a healthcare provider ensures that you receive the appropriate amount of B12 to maintain optimal health
When to contact a clinician or emergency services While most reactions are minor, there are clear red flags to watch for
All dosing decisions should be made by a qualified medical professional