If you notice any of the following, you may be deficient in vitamin B12: Pale or jaundiced skin Weakness and fatigue Nerve damage that feels like pins and needles Changes in balance, coordination and the way you walk A swollen tongue and mouth sores Shortness of breath and dizziness Blurred vision Brain disorder like depression and dementia High body temperature Signs That a B12 Injection Could Be Right for You There are many people who can improve their health and well-being with vitamin B12 injections, especially under the following circumstances
But if you take supplements, you might ingest more than your body needs
Behling LA, Hartsel SC, Lewis DE, DiSpirito AA, Choi DW, Masterson LR, Veglia G, Gallagher WH (2008) J Am Chem Soc 130:1260412605
Among human mitochondrial GSTs, the isoforms hGSTA4-4, hGSTA1, hGSTA2, and hGSTP1 showed peroxidase activity, with hGSTA4-4 exhibiting the highest activity (Gardner and Gallagher, 2001