They had to stay alive
Cyanocobalamin may be recommended if a dogs vitamin B12 levels are low and the cause is related to poor absorption such as chronic gastrointestinal disease, exocrine pancreatic insufficiency (EPI), intestinal disorders, or other causes of a B12 deficiency
[7] There are three major families of superoxide dismutase, depending on the protein fold and the metal cofactor: the Cu/Zn type (which binds both copper and zinc), Fe and Mn types (which bind either iron or manganese), and the Ni type (which binds nickel)
Ergothioneine improves healthspan of aged animals by enhancing cGPDH activity through CSE-dependent persulfidation
Krishnan, N., Fu, C., Pappin, D
Quality and purity vary widely between suppliers