Its pleiotropic beneficial effects, significance as a possible cytoprotection mediator, neurotransmitter, eye therapy, tendon, muscle (striated, smooth, and heart muscle), junction (neuromuscular, osteotendinous, myotendinous, muscle-to-bone attachment), angiogenesis, and NO-system functions, and its considerable role in braingut axis and gutbrain axis functioning were presented in several reviews given by our group [3,4,5,6,7,8,9,10,11,12,13,14,16,17,18,19,20,21,22,23,24,27,28,29,30,31,32,34,37,39,40] and other groups [1,2,15,25,26,33,35,36,38], as well
Conclusion: Choosing the Right Approach for You Both vitamin B12 injections and oral supplements have their advantages and drawbacks, and the best option depends on your individual circumstances
David Sinclair notes in his work: "NAD+ is pivotal for sirtuins and aging reversal
After getting a B12 shot, you should watch out for these symptoms and see a doctor if you have: Strong pain where you got the shot Some stomach upset Feeling swollen Skin feeling itchy for a while In really rare cases, there might be more serious risks like: A severe allergic reaction called anaphylaxis Fluid build-up in the lungs Heart problems Blood clots in the bodys blood vessels A type of blood cancer, called polycythemia vera
