How to assess Vitamin B2 Status? B2 nutritional status is assessed through the ERYTHROCYTE GLUTATHIONE REDUCTASE ACTIVITY COEFFICIENT (EGRAC), which should be < 1.2. What is this coefficient? FAD Pedro Carrera Bastos Best Liposomal Glutathione Supplement for Detox Quicksilver Scientific Elevated glutathione levels may reflect an accumulation resulting from impaired recycling, often due to deficiencies in NADPH, selenium, or riboflavin (vitamin B2). This indicates a disruption in the redox balance rather than The Redox Process in Red Blood Cells: Balancing Oxidants and Antioxidants