The Ultimate Blood Sugar Levels Chart (By Age, Non-Diabetic & More)
Understanding blood sugar levels is crucial for maintaining overall health, whether you're managing diabetes or simply aiming for a healthy lifestyle. This comprehensive guide will break down optimal blood glucose levels based on age, diabetic status, and other important factors. We'll cover everything from normal ranges to what to do if your blood sugar is too high or too low.
Why Monitoring Blood Sugar is Important
Regular monitoring of blood sugar levels is essential for several reasons:
- Early Detection of Diabetes: High blood sugar is a primary indicator of diabetes, allowing for early intervention.
- Effective Diabetes Management: For those with diabetes, consistent monitoring helps maintain healthy blood sugar levels and prevent complications.
- Personalized Health Insights: Tracking your blood sugar can reveal how diet, exercise, and stress impact your body.
- Prevention of Complications: Consistently high or low blood sugar can lead to serious health issues.
Blood Sugar Levels Chart: By Age Group (Non-Diabetic)
This chart provides a general guideline for normal blood glucose levels in non-diabetic individuals, measured in milligrams per deciliter (mg/dL).
Age Group | Fasting Blood Sugar (mg/dL) | 2 Hours After Eating (mg/dL) |
---|---|---|
Children (Under 6) | 80-180 | Up to 200 |
Children (6-12) | 70-150 | Up to 180 |
Teenagers (13-19) | 70-140 | Up to 140 |
Adults (20+) | 70-99 | Up to 140 |
Important Note: These are general guidelines. Consult your healthcare provider for personalized recommendations, especially if you have pre-existing conditions.
Blood Sugar Levels for People with Diabetes
For individuals with diabetes, target blood sugar levels are often different than those for non-diabetics. This is to help minimize the risk of diabetes-related complications. Work closely with your healthcare provider to establish a personalized blood glucose management plan.
Timing | Target Blood Sugar (mg/dL) - General | ADA Recommendation | AACE Recommendation |
---|---|---|---|
Fasting/Before Meals | 80-130 | 80-130 | <110 |
1-2 Hours After Meals | Less than 180 | Less than 180 | <140 |
HbA1c (Average over 2-3 Months) | Less than 7.0% | Less than 7.0% | Less than 6.5% |
- ADA: American Diabetes Association
- AACE: American Association of Clinical Endocrinologists
Blood Sugar Levels During Pregnancy (Gestational Diabetes)
Gestational diabetes, which develops during pregnancy, requires careful management to protect both the mother and the baby. The target blood glucose ranges are generally stricter than those for typical diabetes.
Timing | Target Blood Sugar (mg/dL) |
---|---|
Fasting | 95 or less |
1 Hour After Meal | 140 or less |
2 Hours After Meal | 120 or less |
Close monitoring and consultation with a healthcare professional are essential for managing gestational diabetes effectively.
Understanding Blood Sugar Readings
- Fasting Blood Sugar: Measured after at least 8 hours of fasting.
- Postprandial Blood Sugar: Measured 1-2 hours after eating a meal.
- A1C: Reflects average blood sugar levels over the past 2-3 months.
- Random Blood Sugar: Measured at any time of the day without regard to meals.
What to Do If Your Blood Sugar Is High (Hyperglycemia)
High blood glucose, known as hyperglycemia, can occur for various reasons, including:
- Dietary indiscretion (eating too many carbs or sugar)
- Lack of physical activity
- Illness or infection
- Stress
- Insufficient insulin or oral diabetes medication
Steps to Take:
- Check Blood Sugar: Confirm that your blood sugar is indeed high using a blood glucose meter.
- Drink Water: Stay hydrated to help flush out excess glucose.
- Exercise (If Appropriate): If safe and you feel well, light exercise can help lower blood sugar.
- Medication: Take your prescribed diabetes medication as directed.
- Monitor and Repeat: Recheck your blood sugar after a couple of hours.
- Contact Your Doctor: If blood sugar remains high or you experience symptoms like increased thirst, frequent urination, or blurred vision, contact your healthcare provider.
What to Do If Your Blood Sugar Is Low (Hypoglycemia)
Low blood sugar, or hypoglycemia, can be dangerous if left untreated. Symptoms include:
- Shakiness
- Sweating
- Dizziness
- Confusion
- Hunger
- Irritability
Steps to Take:
- Check Blood Sugar: Confirm that your blood sugar is low.
- Immediate Treatment: Consume 15-20 grams of fast-acting carbohydrates, such as:
- Glucose tablets
- Fruit juice
- Regular (non-diet) soda
- Hard candies
- Wait and Recheck: After 15 minutes, recheck your blood glucose level.
- Repeat If Necessary: If blood sugar is still low, repeat the treatment.
- Eat a Snack: Once your blood sugar is above 70 mg/dL, eat a small snack containing both carbohydrates and protein (e.g., crackers with peanut butter) to prevent another drop.
- Contact Your Doctor: If you experience frequent or severe hypoglycemia, consult your healthcare provider.
Factors Affecting Blood Sugar Levels

Many factors can influence blood sugar levels, including:
- Diet: High-carbohydrate and sugary foods can cause spikes in blood sugar.
- Exercise: Physical activity generally lowers blood sugar.
- Stress: Stress hormones can raise blood sugar.
- Medications: Some medications can affect blood glucose levels.
- Illness: Infections and illnesses can increase blood sugar.
- Sleep: Insufficient or poor-quality sleep can affect insulin sensitivity.
- Hydration: Dehydration can concentrate glucose in the blood, leading to higher readings.
Tips for Maintaining Healthy Blood Sugar
- Eat a Balanced Diet: Focus on whole foods, lean proteins, and healthy fats.
- Control Carbohydrate Intake: Be mindful of the amount and type of carbohydrates you consume.
- Exercise Regularly: Aim for at least 150 minutes of moderate-intensity exercise per week.
- Stay Hydrated: Drink plenty of water throughout the day.
- Manage Stress: Practice relaxation techniques like yoga or meditation.
- Monitor Your Blood Sugar: Regularly check your blood glucose levels, especially if you have diabetes.
- Get Enough Sleep: Aim for 7-9 hours of quality sleep each night.
- Work with a Healthcare Provider: Regularly consult with your doctor or a registered dietitian to develop a personalized plan for managing your blood sugar.
Blood Sugar Monitoring Devices
There are various devices available to monitor blood sugar levels:
- Blood Glucose Meters: Traditional meters that require a finger prick to obtain a blood sample.
- Continuous Glucose Monitors (CGMs): Devices that continuously track blood glucose levels through a sensor inserted under the skin. CGMs provide real-time data and can alert you to highs and lows.
Conclusion
Understanding and managing your blood sugar levels is vital for overall health and well-being. Whether you're non-diabetic, have diabetes, or are managing gestational diabetes, using this guide as a resource can help you stay informed and take proactive steps toward a healthier life. Always consult with your healthcare provider for personalized advice and guidance. Proper management of blood glucose contributes to a higher quality of life and reduces the risk of long-term health complications.