Why Is My Blood Sugar High in the Morning?
A high morning reading may happen even when you did not eat overnight. Hormones and your diabetes treatment can both play a role.
Many people notice that their glucose is higher in the morning than they expected. This can happen because hormones released toward the morning can increase the amount of glucose entering the bloodstream and change insulin sensitivity. Treatment needs can also play a role.
Do not assume the cause
A morning high can look similar regardless of the cause. That is why your healthcare team may want information from several time points instead of guessing from a waking reading alone.
What to log
- Bedtime glucose, if advised.
- The time and composition of your evening meal.
- Your medication timing as prescribed.
- Your waking glucose.
- Illness, stress, unusual exercise or poor sleep.
“The goal of tracking is not to catch yourself doing something wrong. It is to give your healthcare team enough context to understand the pattern.”
Frequently asked questions
Does eating late always cause high morning sugar?
Not always. A late meal can affect some people, but morning highs can also be influenced by overnight hormones, medication and other factors.
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