Good Blood Sugar Levels after Eating vs. Fasting

Good Blood Sugar Levels

For most health conditions, diagnostic laboratory testing is fairly accurate and is not impacted much by lifestyle or diet. Diabetes is one major disease that does not fall into this category. Food, drinks, fasting and more can all impact both bad and good blood sugar levels and severely change test results. Additionally, people monitoring their blood sugar at home will find drastic fluctuations depending on time and contents of their last meal. For these reasons, it is very important to understand the differences between good blood sugar levels after eating and also after fasting in order to determine if laboratory results, home testing or both are as accurate as they can be. This knowledge can also help persons with diabetes better understand the way that foods affect them, providing incredibly valuable information about how to lower blood sugar levels with diet.

As a diagnostic tool, most individuals that are suspected to have diabetes or pre diabetes will encounter what is called as an impaired fasting glycemia test. Without the highs and lows in blood glucose that can be caused by eating and drinking, a more accurate measurement of glucose can occur. Ideally, measurements falling within blood sugar levels normal range for fasting persons without diabetes is between 72 and 108 mg/dL. It is worth noting that although considered the blood sugar levels normal range for fasting persons, this is also the same measurement range considered to exhibit good blood sugar levels in persons before meals but not necessarily following eight hours of fasting as well.

Anything between 108 and 126 mg/dL following fasting falls into a grayer area containing what are sometimes considered acceptable blood sugar levels, but not necessarily ideal. Persons with blood glucose above 108 mg/dL but under 126 mg/dL when measured after fasting are thought to be pre-diabetic or have impaired glucose glycemia. However, this same measurement that is marginally acceptable while fasting is completely and perfectly normal following a meal and would indicated good blood sugar levels and proper condition management.

In fact, even the highest and most dangerous blood sugar levels in a fasting person are considerably less relevant in a person who has recently eaten. For instance, in the absence of food or drink, glucose measurements exceeding 126 mg/dL can indicate a diagnosis of diabetes. However, this same value would be considered among safe blood sugar levels in persons with Type 1 diabetes, Type 2 diabetes and those without diabetes following a meal. This example perhaps helps illustrate the importance of following instructions with regards eating and drinking prior to a test, but also indicates how big of a role that food has in maintaining good blood sugar levels and how important a visual representation of appropriate values really is.

It is likely unsurprising to most people that foods high in carbohydrates can really cause chaos in the body, especially on good blood sugar levels. But, there is another hidden cause of fluctuating measurements that might just be responsible for turning normal blood sugar levels into abnormal ones. This food contained compound is fat, and it has a big effect on how quickly the contents of the stomach can be emptied. What this means is that it is likely that higher fat meals can lead to higher levels of blood sugar following these meals for longer periods of time. In addition to having a direct impact on good blood sugar levels thanks to slowing digestion, fats (especially unhealthy fats) can really increase the risk for cardiovascular illness, which is already a concern for people suffering from certain types of diabetes.

It can be confusing to understand just what is considered good and bad in terms of blood glucose and how that relates to eating and fasting. For these reasons, most people turn to visual aids such as a blood sugar levels chart in order to better understand their readings both in the doctor’s office and at home. Most of these charts will list normal blood sugar levels in persons without diabetes, and then compare those to individuals with Type 1 and Type 2 in both fasting and non-fasting situations. Again, the importance here is to understand that one reading can be very normal following a meal, but signal diabetes if taken in a state of fasting. This is why tools like a blood sugar levels chart are so important.

Although home monitoring is essential for many people suffering from diabetes, perhaps the most important part of treating and managing the disease is regular care from a physician. A doctor looks not just at an individual, but also their health history, their daily food intake and activities and their existing health conditions too as well, and uses that information to determine what good blood sugar levels are for him or her. When this care is combined with exercise, healthy diet and medication, managing diabetes can often be a piece of cake (an imaginary piece, of course).