Vitamin B12 is necessary for the proper functioning of many different aspects of our bodies, and it can sometimes be too tricky to ensure that your diet is allowing you to reach sufficient levels of the vitamin regularly
Reviews typically cant control for confounders (diet changes, exercise, stimulant intake, sleep, stress, or other supplements), and negative experiences are often underreported
What researchers should check before each entry A short pre-check keeps bac water handling consistent: Confirm the vial is bacteriostatic water and not preservative-free sterile water
Conlon N, Ford D
Lack of vitamin B12 may cause anemia (condition in which the red blood cells do not bring enough oxygen to the organs) and permanent damage to the nerves
[51] Diagnosis [edit] According to one review: "At present, no 'gold standard' test exists for the diagnosis of vitamin B 12 deficiency and as a consequence the diagnosis requires consideration of both the clinical state of the patient and the results of investigations." [52] The vitamin deficiency is typically suspected when a routine complete blood count shows anemia with an elevated mean corpuscular volume (MCV)