Is a Blood Sugar Level of 114 mg/dL a Sign of Early Diabetes? - Internal Medicine

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Blood sugar issues?


Hello doctor, I started fasting at 8:00 PM and had blood and urine tests at 10:00 AM the next day.
The report showed a blood glucose level of 114 mg/dL.
Does this mean I am in the early stages of diabetes? Thank you!

Jiu Jiu, 40~49 year old female. Ask Date: 2017/07/08

Dr. Li Zhiyao reply Internal Medicine


Hello: Based on the values from your report, you can be classified as having "prediabetes" (not early-stage diabetes).
If you could also test for "glycated hemoglobin" (also known as HbA1c) and postprandial blood glucose levels two hours after eating, it would be more helpful in understanding your blood sugar status!

Reply Date: 2017/07/08

More Info


A blood sugar level of 114 mg/dL, especially after fasting for 14 hours, does raise some concerns but does not definitively indicate that you have prediabetes or diabetes. According to the American Diabetes Association (ADA), the diagnostic criteria for diabetes and prediabetes are as follows:
1. Normal fasting blood glucose: Less than 100 mg/dL.

2. Prediabetes (Impaired Fasting Glucose): Fasting blood glucose between 100 mg/dL and 125 mg/dL.

3. Diabetes: Fasting blood glucose of 126 mg/dL or higher on two separate tests.

Given your fasting blood sugar level of 114 mg/dL, you fall into the category of impaired fasting glucose, which is often referred to as prediabetes. This condition indicates that your blood sugar levels are higher than normal but not high enough to be classified as diabetes. It is a warning sign that you may be at increased risk for developing type 2 diabetes in the future.

It's important to note that a single test result is not enough to diagnose diabetes or prediabetes. The ADA recommends confirming the diagnosis with a second test, which could be another fasting blood glucose test, an oral glucose tolerance test, or a hemoglobin A1c test. The A1c test measures your average blood sugar levels over the past two to three months, with a result of 5.7% to 6.4% indicating prediabetes and 6.5% or higher indicating diabetes.

In your case, since you are concerned about your blood sugar levels, it would be prudent to follow up with your healthcare provider. They may recommend additional testing to confirm your blood sugar status and assess your risk for diabetes.
In addition to testing, lifestyle modifications can significantly impact your blood sugar levels and overall health. Here are some recommendations:
1. Diet: Focus on a balanced diet rich in whole grains, fruits, vegetables, lean proteins, and healthy fats. Limit your intake of refined carbohydrates and sugary foods, as these can cause spikes in blood sugar levels.

2. Physical Activity: Regular exercise is crucial for maintaining a healthy weight and improving insulin sensitivity. Aim for at least 150 minutes of moderate-intensity aerobic activity per week, such as brisk walking, swimming, or cycling.

3. Weight Management: If you are overweight, losing even a small percentage of your body weight can help improve your blood sugar levels and reduce your risk of developing diabetes.

4. Regular Monitoring: Keep track of your blood sugar levels, especially if you have risk factors for diabetes, such as a family history of the disease, obesity, or a sedentary lifestyle.

5. Regular Check-ups: Schedule regular check-ups with your healthcare provider to monitor your blood sugar levels and overall health. They can provide personalized advice and support based on your individual risk factors.

In conclusion, while a fasting blood sugar level of 114 mg/dL suggests that you may be at risk for prediabetes, it is essential to confirm this with further testing and to take proactive steps to manage your health. By adopting a healthy lifestyle and working closely with your healthcare provider, you can significantly reduce your risk of developing type 2 diabetes in the future.

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