If you or someone you know monitors early morning blood sugar levels, knowing the difference between the Dawn Phenomenon and the Somogyi Effect is more important than you think.
The Dawn Phenomenon is a natural rise in blood sugar during the early morning hours (2–8 AM), caused by the body releasing hormones like cortisol and growth hormone.
The Somogyi Effect, however, happens after nighttime low blood sugar (hypoglycemia). The body overcorrects by releasing stress hormones, causing high blood sugar in the morning.
Though both result in high morning readings, the cause and treatment differ significantly, which is why recognizing the pattern is key to better diabetes control.
Adjusting nighttime routines, insulin timing, and even bedtime snacks can make a big difference.
Have you or someone you know faced early morning glucose spikes? How did you figure out what was causing it—Dawn or Somogyi? Let’s discuss!