Our expert says:
It may be due to the "dawn phenomenon" - hormones secreted during the night may cause increased blood sugar in the morning. It also may be caused as a reaction to too low blood sugars early morning (2-3 am) if you still make some insulin. Check your blood glucose levels for 2-3 days at 3 am - if it is high, you may need additional medication at night, if it is low you may need to eat a high protein snack before going to bed.
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