The normal range of blood sugar levels means that you the level of sugar /glucose in your bloodstream is not too high (hyperglycemia) or too low (hypoglycemia). There are two major specific conditions that can affect and make your blood-glucose level raise & maybe reach its peak level. Those conditions are after eating and after fasting.
The normal metabolism of glucose
Almost all foods that you eat will be digested, and some that contain sugar will break down to become a simple sugar called glucose. This glucose then can enter into your bloodstream directly which then will be used by the body to make energy. In other words, glucose is the primary component for the fuel of your body.
When glucose flows into the bloodstream, there is a kind of hormone that very crucial to regulate the level or volume of glucose in the blood. This hormone is called insulin – it is produced in the pancreas. Your body needs insulin to facilitate the distribution of glucose from the bloodstream to the tissues or cells of the body.
The excess glucose in the blood usually will be converted to become glycogen and then stored in the liver. Some also can be stored in fat cells in a form as ‘fat’. Either glycogen or glucose in a form of fat can be a source of energy for your body between meals.
If your insulin doesn’t work properly, the mechanism of your glucose metabolism also will not work properly. In diabetes, this condition is often called as insulin resistance.
The normal blood sugar levels based on FBG (fasting blood glucose)
As the name implies, FBG or sometime called FBS (fasting blood sugar) is a procedure to measure the level of your blood glucose after fasting (when you don’t drink and eat anything for at least eight hours). Normally, the fasting blood sugar in adults is around 100 mg /dL or lower – according to WebMD.
But if it is higher than 100 mg /dL, it is considered abnormal. If left untreated, it may rise higher than 130 mg /dL which then can be considered into a condition called hyperglycemia. Hyperglycemia is commonly found in diabetes, but sometimes it may also occur in non-diabetics.
Prolonged higher level of FBG can be an early sign that your insulin cannot work optimally in helping the absorption of glucose from the blood plasma (bloodstream) into the cells and muscles of the body. It may point to a condition called pre-diabetes (the phase prior to diabetes – as its name suggests).
If you experience this symptom and you don’t have diabetes, see a doctor to find help. You may be scared of pre-diabetes diagnosis, but don’t worry! You still have good chance to reverse and prevent type-2 diabetes if you are diagnosed with prediabetes. Read also the previous post about foods to prevent diabetes onset in here!
Blood sugar levels normal range before and after eating – how far you should go?
Typically, the lowest levels of blood sugar occur at the times just before you get your meals of breakfast, lunch, and dinner. In normal non-diabetic individuals, the range of their blood glucose levels before eating (between meals) is commonly about 70 mg /dL to 80 mg /dL. Depending on the fit status of each individual, sometime the range of 60-90 mg /dL before meals is still considered normal.
How about with after meals? Normally, your blood glucose should be around 140 mg/dL or lower after eating (two hours after your meal) – according to the National Diabetes Association. Even it can be much lower than 140 mg /dL in most healthy people.
The level of greater than 140 mg /dL after meal (1-2 hours after meal) should not be ignored, because this is considered abnormal! In people with diabetes, the blood glucose level can reach up to 180 mg /dL after eating (a warning sign of hyperglycemia).
What else you need to know?
To analyze whether you glucose metabolism is normal or abnormal – your doctor may also ask you to take a random blood glucose test. This kind of test can be performed regardless of your last meal. The result of this test can help doctor to closely examine the fluctuation of your blood sugar levels.
In healthy individuals, the blood sugar levels typically don’t vary greatly throughout the day. The widely fluctuation levels of blood sugar may point to a serious problem, such as prediabetes or even diabetes.
When talking about the normal levels of blood glucose, high blood glucose is not the single problem, too low level of glucose in the blood (called hypoglycemia) also can be a serious problem. According to Health-Wise, a FBG of lower than 50 mg /dL is considered too low and for 50-70 mg /dL is considered mildly flow.