glutathione synthase Frontiers Glutathione-Related Enzymes and Proteins: A
Description
B12 injections may be recommended for individuals with a deficiency of vitamin B12, which can cause symptoms such as fatigue, weakness, and anemia

While also super duper rare, it is possible to have an allergic reaction to vitamin B12 injections

doi: 10.1038/cr.2009.139
Getting the dosage wrong means getting the results wrong
NAD+ depletion contributes to obesity and metabolic disorders

Lodoen M
