The potential link between inherited G6PD deficiency, oxidative stress, and vitamin D deficiency and the racial inequities in mortality associated with COVID 19 ScienceDirect Glucose 6 Phosphate: Metabolism and Functions G6PD Deficiency causes Haemolytic Anaemia Glucose 6 phosphate dehydrogenase is an enzyme in the hexose monophosphate shunt that synthesizes NADPH. The NADPH is used to convert oxidized glutathione (GSSG) to reduced glutathione ( Glucose 6 phosphate dehydrogenase deficiency Knowledge @ AMBOSS The Controversial Role of Glucose6Phosphate Dehydrogenase Deficiency on Cardiovascular Disease: A Narrative Review Dore 2021 Oxidative Medicine and Cellular Longevity Wiley Online Library