What is fasting blood sugar?

Fasting blood sugar is the amount of glucose in your blood after you have not eaten for at least 8 hours. Glucose is a type of sugar that your body uses for energy. When you eat, your body breaks down carbohydrates into glucose, which is then released into your bloodstream. Your pancreas releases insulin, a hormone that helps your body use glucose for energy or store it for later use.

What is a normal fasting blood sugar level?

The normal fasting blood sugar level for adults is 70 to 99 milligrams per deciliter (mg/dL). A fasting blood sugar level of 100 to 125 mg/dL is considered prediabetes, and a fasting blood sugar level of 126 mg/dL or higher is considered diabetes.

What factors can affect fasting blood sugar levels?

There are a number of factors that can affect fasting blood sugar levels, including:

• Age: As you get older, your fasting blood sugar levels tend to rise.
• Genetics: Your genes play a role in determining your fasting blood sugar levels.
• Race: African Americans, Hispanic Americans, and Native Americans are more likely to have high fasting blood sugar levels than white Americans.
• Weight: Being overweight or obese can increase your risk of high fasting blood sugar levels.
• Physical activity: Regular physical activity can help lower fasting blood sugar levels.
• Medications: Some medications, such as steroids and diuretics, can raise fasting blood sugar levels.
• Illness: Certain illnesses, such as infections and pancreatitis, can also raise fasting blood sugar levels.

What are the symptoms of high fasting blood sugar?

You may not have any symptoms of high fasting blood sugar, especially if you have had it for a long time. However, some people may experience symptoms, such as:

• Frequent urination
• Increased thirst
• Fatigue
• Blurred vision
• Slow-healing sores
• Weight loss

What are the complications of high fasting blood sugar?

If you have high fasting blood sugar, you are at an increased risk of developing a number of complications, including:

• Heart disease
• Stroke
• Kidney disease
• Blindness
• Nerve damage
• Amputation

How can I lower my fasting blood sugar levels?

There are a number of things you can do to lower your fasting blood sugar levels, including:

• Losing weight if you are overweight or obese
• Eating a healthy diet
• Getting regular physical activity
• Taking medication, if necessary

If you are concerned about your fasting blood sugar levels, talk to your doctor.

Your doctor can help you determine if you have high fasting blood sugar and can recommend ways to lower your levels.

Additional information

In addition to the information above, here are some additional things to keep in mind about fasting blood sugar levels:

• The normal fasting blood sugar level range may vary slightly depending on the laboratory that performs the test.
• If you have had a recent illness, your fasting blood sugar level may be higher than normal.
• If you are taking certain medications, such as steroids or diuretics, your fasting blood sugar level may be higher than normal.
• If you are pregnant, your fasting blood sugar level may be higher than normal.
• See a fasting blood sugar levels chart.

If you have any concerns about your fasting blood sugar levels, talk to your doctor.