Fasting blood glucose

Fasting blood glucose is the blood glucose level , which is done by a laboratory blood test.

What is blood sugar?

Blood sugar is the concentration of sugar in the blood. Its values ​​change from one moment to the other of the day, according to the food intake of an individual.

The pancreas is responsible for regulating blood sugar in the body, thanks to a hormone secreted by the pancreas in the blood, insulin. Poor functioning of the pancreas is the cause of diabetes, which is an excess of glucose (sugar) in the blood.

The measurement of blood glucose thus makes it possible to control whether the body is capable of regulating the concentration of sugar in the blood.

Why do this exam on an empty stomach?

Fasting blood glucose is, by definition, uninfluenced by a meal, so it is only sensitive to insulin concentration and, if elevated, can be used to diagnose diabetes.

How long does it take to fast?

Before taking the blood test, the patient should not have eaten or drunk (except water) for at least 8 hours. Ideally, if you combine this analysis with that of triglycerides or cholesterol, it should be fasting for 12 hours.

Evaluate your risk of diabetes!

Are you at risk of developing diabetes? To find out, just answer a few questions ... Take the test!

Want to react, share your experience or ask a question? Appointment in our FORUMS Diabetes or A doctor answers you .

Read also :

> Diabetes in women: what peculiarities?
> Diabetes: it is important to be well followed!
> 10 things to know about diabetes
> Insulin treatment: how does it work?

Author: Elide Achille.
Expert consultant: Dr. Claude Colas, diabetologist doctor.

Popular Posts

Category Nutrition, Next Article

Stevia - Nutrition


Unknown in France, stevia has been consumed for centuries by Guarani Indians. Its sweetening power, 300 times higher than that of sugar, comes from one of its active ingredients: rebaudioside A. Like all sweeteners, the interest of stevia is to sweeten food as beverages, without adding sugars or calories
Read More
The water - Nutrition

The water

Water is an essential food for life. It represents about 60% of the body weight of an adult and up to 75% of that of the infant. Every day we lose about 2.5 liters of water through breathing, sweat and especially urine. Our food brings us daily about a liter of water thanks to fruits, vegetables, dairy products, soups
Read More
Vitamin B6: the symptoms of vitamin B6 deficiency - Nutrition

Vitamin B6: the symptoms of vitamin B6 deficiency

Vitamin B6 is present in many foods, its deficiency is quite rare in people living in Western countries. However, pregnant women, adolescents, and the elderly may be susceptible to a lack of vitamin B6. Vitamin B6 deficiency can cause various symptoms, such as: irritability, feelings of confusion, skin symptoms (seborrheic dermatitis around the eyes and mouth), anemia (fatigue) One study also indicated that a vitamin B6 deficiency (and B9, and B12), would increase the risk of developing Parkinson's disease
Read More
Nutrient: Dietary fiber - Nutrition

Nutrient: Dietary fiber

Substances without calories, dietary fiber has long been considered as devoid of any nutritional interest. Wrong! Today, they are recognized as a health element in their own right, because their absorption helps prevent certain diseases, such as the formation of intestinal diverticula, and probably colon cancer
Read More