Hello JR. When you go for a long period of time without eating carbs your glucose supply drops and your liver produces a supply of glucose to compensate. The amount of glucose produced is usually more than you need since you are not active at night so your blood sugar level rises. That is why so many diabetics have high blood sugar in the morning before breakfast. Since it usually happens in the morning it is called Dawn Phenomenon, or DP. It can also happen at other times if you skip meals and are not eating for many hours. Some diabetics eat a high protein snack at bed time. The protein digests slowly and can help keep the liver from doing its thing. Like Peter said, a Type 1 diabetic can compensate for this. I used to test at 3 AM and then take a small dose of fast acting insulin so I would wake up at a good level.
I don't think you have mentioned your diagnosis. Are you Type 1, Type 2, prediabetic? How you handle DP can vary, depending on your Type of diabetes.
Richard
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