Yes, a fasting blood sugar level of 135 mg/dL in the morning is considered high. Normally, fasting blood sugar should be between 70-100 mg/dL. Levels between 100-125 mg/dL indicate prediabetes, while 126 mg/dL or higher suggests diabetes.
If you consistently wake up with blood sugar at 135 mg/dL, it could signal insulin resistance, prediabetes, or diabetes. However, temporary spikes can also occur due to the “dawn phenomenon” or the Somogyi effect. Let’s explore what this means and how to manage it.
Understanding Morning Blood Sugar Levels
Normal vs. High Morning Blood Sugar
- Normal range (non-diabetic): 70–99 mg/dL
- Prediabetes: 100–125 mg/dL
- Diabetes: 126 mg/dL or higher
A reading of 135 mg/dL falls in the diabetic range, meaning further testing (like an HbA1c test) may be needed for confirmation.
Why Is My Morning Blood Sugar High?
1. Dawn Phenomenon
- Occurs due to natural hormonal surges (cortisol, growth hormone) that trigger the liver to release glucose.
- Common in both diabetics and non-diabetics, but those with insulin resistance struggle to regulate it.
2. Somogyi Effect (Rebound Hyperglycemia)
- Happens when blood sugar drops too low overnight, causing the body to overcompensate by releasing excess glucose.
- Often seen in people taking insulin or certain diabetes medications.
3. Insulin Resistance or Insufficient Insulin
- If the body doesn’t produce enough insulin or becomes resistant, glucose builds up in the blood.
4. Late-Night Eating or High-Carb Snacks
- Consuming high-sugar or high-carb foods before bed can lead to elevated morning levels.
How to Lower Morning Blood Sugar
1. Adjust Your Evening Meal
- Avoid refined carbs and sugary snacks before bed.
- Opt for protein and healthy fats (e.g., nuts, Greek yogurt).
2. Monitor Your Blood Sugar Overnight
- Check at bedtime, 2-3 AM, and upon waking to identify patterns.
3. Exercise Regularly
- Evening walks or light activity can help regulate overnight glucose.
4. Medication & Insulin Adjustments
- If you’re on diabetes medication, consult your doctor about timing or dosage changes.
5. Stay Hydrated
- Dehydration can increase blood sugar concentration.
6. Manage Stress & Sleep Well
- Poor sleep and stress raise cortisol, worsening insulin resistance.
FAQs About High Morning Blood Sugar
1. Is 135 mg/dL dangerous?
While not an emergency, consistent readings above 126 mg/dL may indicate diabetes and require medical evaluation.
2. Can non-diabetics have high morning blood sugar?
Yes, due to the dawn phenomenon, but levels should stay below 100 mg/dL.
3. How can I tell if it’s the dawn phenomenon or Somogyi effect?
- Dawn phenomenon: Gradual rise in glucose overnight.
- Somogyi effect: Low blood sugar (below 70 mg/dL) followed by a sharp spike.
4. When should I see a doctor?
If your fasting blood sugar is consistently above 125 mg/dL, seek medical advice for further testing.
Final Thoughts
A morning blood sugar of 135 mg/dL is high and may indicate prediabetes or diabetes. However, factors like the dawn phenomenon, late-night eating, or medication effects can also contribute.
Key Takeaways:
✔ Check your levels regularly to identify patterns.
✔ Adjust diet and exercise to improve overnight glucose control.
✔ Consult a doctor if readings remain high.
By understanding the causes and taking proactive steps, you can better manage your morning blood sugar levels.
Need more personalized advice? Visit QnA Doseway for expert insights on diabetes and blood sugar management!
