Johns Hopkins Diabetes Guide

Dawn Phenomenon

Shivam Champaneri, M.D.; Rita Kalyani, M.D., M.H.S.


  • The tendency for blood glucose to rise between 4 and 8 AM.
  • To be clinically relevant, should have an increase of blood glucose by >10 mg/dl or an increased insulin requirement of 20% during these hours[1].

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