Blood Test Guidelines in Dubai: 8 Tests That Require Fasting ServiceMarket Blog Fasting for blood work typically involves avoiding food and drink (except water) for eight to twelve hours to ensure accurate results, particularly for tests like glucose, cholesterol, and triglycerides. It is important Assay for quantitative determination of glutathione and glutathione disulfide levels using enzymatic recycling method Nature Protocols General reaction mechanisms for antioxidant glutathione peroxidase Download Scientific Diagram Capillary Blood GSH Level Monitoring, Using an Electrochemical Method Adapted for Micro Volumes