People with type 2 diabetes often experience recurring higher blood sugar levels in the morning. This is called the dawn effect. Without eating anything, your blood sugar rises between 4 a.m. and 8 a.m. This is due to a nighttime surge in certain hormones, which causes the liver to produce glucose and your blood sugar level to rise. Your body is less able to correct this at night, causing your morning blood sugar to be (too) high.
Why does my blood sugar rise at night/morning without eating anything?
Dawn effect, early dawn effect, early morning rise, morning peak
Written by Jim Leseman
Updated yesterday