In the liver cholecalciferols are hydroxylated at the 25 position by a specific vitamin D 25-hydroxylase generating 25-hydroxy-D 3 [25-(OH)D 3 : more commonly called calcidiol]
doi: 10.21315/tlsr2016.27.2.6 548 De SimoneC
It's involved in the synthesis of myelin, which is the protective coating around the nerves
Background Reduced Glutathione (GSH) is a tripeptide naturally synthesized in human cells, consists of glutamic acid, cysteine and glycine, contains sulfhydryl (-SH), is widely distributed in each organ of a human body, and has important effects on maintaining the biological function of cells and protecting the integrity of cell membranes
For example, people who maintain a vegetarian or vegan diet, people with absorption disorders, and those taking prescription meds like Metformin, Proton Pump Inhibitors (PPIs), and H2 blockers like Pepcid are often at greater risk