Which blood tests can be done without fasting? HealthcareOnTime Glutathione Index Test Food for the Brain Foundation Is Glutathione Good for Liver Health? Exploring Its Benefits, Uses, and Side Effects IVDrips 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 Fasting requirements for Chemistry tests. Fasting before blood test. Is it necessary for every test? Many people fast unnecessarily before routine blood tests. Only specific tests like Lipid Profile and Fasting Blood Sugar require 8 to 12