The person must fast for 12 hours before the test. After that, the person should have a meal of at least 75 gms of carbohydrate and wait for 2 hours.

What should I eat before Ppbs test?

“Opt for low GI foods such as green vegetables and lentils to prevent sudden increases in PPBS and maintain a good glycemic control.”

How do I prepare for a postprandial blood sugar test?

A 2-hr Postprandial Glucose Test establishes the diagnosis of diabetes mellitus. Preparation: Test requires adequate meal 2 hours prior to going in for blood collection. Meal should be completed within 15-20 minutes. Test Results: 2-3 days.