You Need More Riboflavin with G6PD Deficiency! G6PDHelp.com Although G6PD deficiency, which can cause problems in red blood cells upon certain triggers, is the most common human enzyme defect, affecting over 400 million people, including over 1 in 10 Black How to Check Your Genetic Data for G6PD Deficiency G6PD deficiency triggers dopamine loss and the initiation of Parkinson's disease pathogenesis: Cell Reports