What causes less post prandial blood sugar than fasting?

Hello,

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Yes, it happens. In a diabetic, fasting blood sugar usually results from a combination of factors, the two most important being, what you ate the day (or night) before and how high your blood sugar spiked. If you have very high blood sugar the night before, you should expect your fasting blood sugar to be elevated. Sometimes an eight-hour fast is just not long enough to bring down the blood sugar. Dawn Phenomenon is common in diabetics, and it is when hormones that you produce in the morning cause your liver to release more glucose for energy. Either way, higher fasting levels result. Often Dawn phenomenon and high blood sugar from the day or night before work with each other. When you eat, the liver stops pumping out so much glucose, and postprandial blood sugar can drop, which is what happened to you. My suggestion is to do a pre-dinner sugar and see what is your blood glucose level before dinner. If it is high (>130 mg/dL), we have to alter the drugs and dosage. I hope this helps.