Why Your Blood Sugar Spikes (Even When You Don’t Eat)

Ever look at your CGM and think, “Why is my blood sugar spiking? I didn’t even eat anything?” In this episode of Glucose Guy, we break down the real reasons blood sugar spikes happen—even when food isn’t involved. From fast-digesting carbs and insulin timing… to stress, hormones, illness, caffeine, and the dawn phenomenon—this is everything you need to start making sense of those frustrating numbers. Hi, I’m Jeff — the Glucose Guy. I’m a T1D dad, not a doctor. This is education, not medical advice—always follow your care team’s guidance. If you’re living with Type 1 diabetes—or caring for someone who is—this episode will help you spot patterns, reduce spikes, and feel more in control. 👍 Subscribe for simple, real-world diabetes education every week. **Information Based on ADA, ISPAD, and CDC diabetes education standards. Always check with your care team for personalized guidance. *DISCLAIMER – This video does not provide medical advice! The information, including but not limited to, text, graphics, images and other material contained in this video are for informational purposes only. No material in this video is intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health care provider with any questions you may have regarding a medical condition or treatment and before undertaking a new health care regimen, and never disregard professional medical advice or delay in seeking it because of something you saw in this video. 00:00 Why is my blood sugar spiking?! 00:30 Cause 1: Food 00:47 Cause 2: Insulin TIming 01:02 Cause 3: Stress 01:19 Cause 4: Illness 01:31 Cause 5: Hormones 01:43 Cause 6: Caffeine 01:56 Cause 7: The Dawn Phenomenon 02:14 Tips to Reduce Spikes 1: Pre-Bolus 02:26 Tips to Reduce Spikes 2: Pair Carbs with Protein or Fiber 02:46 Tips to Reduce Spikes 3: Stay Hydrated 03:02 Tips to Reduce Spikes 4: Light Movement After Meals 03:17 Tips to Reduce Spikes 5: Patterns Not One-Offs 03:33 Conclusion