Community Answer

Answered by Dr. Emily Carter, MD

Blood sugar levels can change rapidly depending on various factors, including diet, physical activity, stress, and medication. Here’s a breakdown of how quickly blood sugar can change:

  • After Eating: Blood sugar levels can rise within 15-30 minutes after consuming carbohydrates, especially simple sugars.
  • Physical Activity: Exercise can lower blood sugar levels within minutes to hours, depending on the intensity and duration.
  • Medication: Insulin or oral diabetes medications can lower blood sugar levels within 15 minutes to a few hours.
  • Stress or Illness: Stress hormones or illness can cause blood sugar levels to rise quickly, sometimes within minutes.

It’s important to monitor your blood sugar regularly, especially if you have diabetes, to manage these fluctuations effectively.

Last updated: 1/12/2025

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