Blood Sugar Levels Explained

Understanding blood sugar numbers can feel confusing at first. Whether you’ve received a lab report, checked a glucose meter, or heard terms like “fasting sugar” or “post-meal sugar,” knowing what the numbers mean is important. This website explains common blood sugar readings in simple language so you can better understand general ranges and when to seek medical guidance.

Normal Blood Sugar Ranges

Blood sugar levels change throughout the day depending on meals, activity, stress, and sleep. Doctors usually look at specific types of readings, such as fasting blood sugar, after-meal blood sugar, and random blood sugar tests. Each has its own general reference range. On this site, you’ll find easy explanations of these ranges so you can interpret numbers without confusion.

Fasting Blood Sugar Readings

Fasting blood sugar is measured after not eating for at least eight hours, usually in the morning. In general reference ranges, a fasting level between 70 and 99 mg/dL is considered normal. Readings between 100 and 125 mg/dL may indicate elevated levels, while readings 126 mg/dL or higher on repeated tests are commonly associated with diabetes. Only a medical professional can provide diagnosis, but understanding these ranges helps you ask better questions during checkups.

After Meal Blood Sugar Readings

After-meal (postprandial) blood sugar is usually checked about two hours after eating. In general reference guidelines, a reading below 140 mg/dL is considered within normal range. Levels between 140 and 199 mg/dL may be elevated, while readings 200 mg/dL or higher can indicate high blood sugar. Knowing post-meal ranges can help individuals understand how food affects glucose levels.

When to Consult a Doctor

Blood sugar numbers are only one part of overall health. If you consistently notice readings outside normal reference ranges, experience symptoms, or have concerns about diabetes, it’s important to consult a qualified healthcare professional. This website provides general educational information only and does not replace medical advice or diagnosis.