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What Should Be Fasting Blood Sugar Level


Q What Is The Blood Sugar Level For A 72 Year Old Woman

What Should Your Fasting Blood Sugar Levels Be?

Answer:If you are aged but completely healthy, then you are likely to have your blood glucose at a standard level. But generally, aged people are more or less vulnerable to diseases. Though it is preferable to have blood sugar in between 100-120 mg/dl rising up to 140mg/dl is acceptable in certain conditions.

What A Fasting Blood Sugar Test Shows

A fasting blood sugar test performed by a healthcare professional will return results that will fall into one of three different ranges: Normal range, prediabetes, or diabetes. The Centers for Disease Control and Prevention and the categorize these ranges with the following results:

Result
Diabetes126 mg/dL or higher

A fasting blood sugar test that is performed by a healthcare professional and sent to a lab can help in the diagnosis of diabetes. An at-home fasting test should not be used to diagnose diabetes because there are many factors of a finger stick test that can affect accuracy, such as environmental conditions, expired or damaged test strips, residue on unwashed fingers, insufficient blood drop, and testing site location. You can read more about the factors that affect accuracy in this article: The Truth Behind the Numbers: What Affects Blood Glucose Meter Accuracy?

At-home fasting blood sugar tests have a different purpose in diabetes management. They provide a baseline blood sugar reading that, when compared to other readings throughout the day, allows people with diabetes to learn what factors affect their blood sugar and by how much. For instance, if you started the day within a normal range and then saw higher levels later on, there is likely a certain trigger that caused your levels to increase maybe it is due to taking a certain medication, eating a big meal, or other factors.


What Is Blood Glucose Anyway

Blood glucose, or sugar, is sugar that is in your blood . It comes from the food that you eat foods that contain carbohydrate, such as bread, pasta and fruit are the main contributors to blood glucose. The cells in our bodies need glucose for energy and we all need energy to move, think, learn and breathe. The brain, which is the command center, uses about half of all the energy from glucose in the body.

Normal Postmeal Blood Sugar Levels

Checking your blood glucose one to two hours after eating can help you understand how your blood sugar reacts to the food you consume. It can also offer insight into whether you’re taking the right dose of insulin or if you need to follow up with your doctor to discuss medication and diet or lifestyle adjustments. 

There are two ways you can measure your blood glucose levels: by pricking your fingertip using a glucometer or by using continuous glucose monitoring. How often you should check your glucose levels varies from a few times per week to four to six times each day. As a general rule, the American Diabetes Association recommends keeping blood sugar below 180 mg/dL one to two hours after eating.

However, your target blood sugar range will depend on the following:

  • Duration of diabetes

Hba1c Test For Diabetes Diagnosis

A Simple Blood Sugar Level Guide

An HbA1c test does not directly measure the level of blood glucose, however, the result of the test is influenced by how high or low your blood glucose levels have tended to be over a period of 2 to 3 months.


Indications of diabetes or prediabetes are given under the following conditions:

  • Normal: Below 42 mmol/mol
  • Prediabetes: 42 to 47 mmol/mol
  • Diabetes: 48 mmol/mol

There are two types of blood sugar levels that may be measured. The first is the blood glucose level we get from doing finger prick blood glucose tests. These give us a reading of how high our levels are at that very point in time.

The second is the HbA1c reading, which gives a good idea of our average control over a period of 2 to 3 months. The target blood glucose levels vary a little bit depending on your type of diabetes and between adults and children.

Where possible, try to achieve levels of between 4 and 7 mmol/L before meals and under 8.5 mmol/L after meals. The target level for HbA1c is under 48 mmol/mol .

Research has shown that high blood glucose levels over time can lead to organ and circulation damage.


Keeping blood glucose above 4 mmol/l for people on insulin or certain medications for type 2 diabetes is important to prevent hypos occurring, which can be dangerous.

Your doctor may give you different targets. Children, older people and those at particular risk of hypoglycemia may be given wider targets.

FREE blood glucose level chart

How To Test Your Blood Sugar Levels

After you wake up in the morning, check your fasting blood sugar levels using a blood glucose meter or continuous glucose monitor . Before you use a blood glucose meter, the recommends washing your hands and using the lancing device to get a drop of blood. After you hold the test strip against the drop of blood, your blood sugar levels should appear on the meter.

What Is A Good A1c Level

Levels between 5.7 and 6.4 are considered prediabetes. For most people with diabetes, the general A1C goal is to have a level between 6.0 and 6.9. While it might sound like the ideal A1C target is under 6.0, for those with diabetes, this level can indicate low blood sugar levels, which can be just as dangerous as high blood sugar levels. If A1C results fall between 7.0 and 8.9, a doctor might suggest lifestyle changes or medications to help lower the levels to what is considered controlled. However, for some people, these levels might be appropriate, such as:


  • Those with a limited life expectancy
  • People with long-standing diabetes who have trouble reaching a lower goal
  • Those with severe hypoglycemia or the inability to sense hypoglycemia 

Intermittent Fasting Reduces Blood Sugar

The benefits of intermittent fasting extend far beyond weight loss. Studies show it can reduce your risk for type 2 diabetes and heart disease because it improves the regulation of your blood sugar, increases your resistance to stress, and suppresses inflammation.

A case study published in the US National Library of Medicine showed patients with type 2 diabetes who participated in an intermittent fasting protocol lost weight and managed to stop insulin therapy. In studies where weight loss didnt occur, fasting still improved the glucose levels of participants. 

This latter finding is significant because it confirms that a reduction in bloodstream glucose is not a secondary benefit of weight loss, but a direct result of intermittent fasting. This reduction in blood sugar could be due to the changes in signaling pathways and metabolic rhythm that fasting invokes, as well as an increase in ketones. 

Improvements in blood sugar tend to be dependent on fasting. Your blood sugar will typically improve after 2-4 weeks of compliance with a fasting protocol, and it dissipates if you return to eating three meals or more per day. 

You may be able to maintain your weight loss after you stop fasting, but long-term fasting is recommended if you need to continue to regulate your blood sugar.


A Warning Of Developing Type 2 Diabetes

Blood Sugar Levels Chart | Includes fasting and after eating

Impaired fasting glycaemia is sometimes called pre-diabetes. This is when blood glucose levels in the body are raised, but are not high enough to mean that the person has diabetes. IFG means that the body isnt able to use glucose as efficiently as it should. This is because a layer of fat around the cells of the body, prevents insulin doing its job and taking the glucose into the cells of the body where its needed for energy. This situation is reversible by losing weight and hence the fat around the cells disappears. If you dont lose weight however, is it unlikely that you wont eventually develop Type 2 Diabetes.

IFG has no symptoms and can often go undiagnosed for years. Although there are no symptoms, many people diagnosed with IFG are overweight. Nine out of 10 people with IFG have high blood pressure, raised cholesterol levels or a family history of the condition.

IFG can lead to the development of type 2 diabetes. People with IFG are five to 15 times more likely to develop type 2 diabetes than people with normal glucose levels. However, this isnt inevitable. You can take steps to reduce the chances of this happening. People with IFG also have a slightly increased risk of heart disease and stroke.

What Are The Treatments For Prediabetes

If you catch it early, prediabetes can usually be reversed with diet and exercise. Depending on how high your blood sugar is when youre first diagnosed, your doctor might elect to put you on one medication or a combination in order to get your glucose back down to a healthy level.

Going on medication for prediabetes treatment is not cut and dry, Antonucci says. Your blood sugar levels, A1C, medical history, and other complications might put you in a situation where medication should be added to your treatment plan to avoid type 2 its case by case, so work with your doctor to arrive at the best treatment for you.


How To Control Blood Sugar With Intermittent Fasting

If youd like to try intermittent fasting for blood sugar control, there are a few things for you to consider, especially if you have diabetes.

Choose an intermittent fasting plan that wont cause you stress. During your fast, your insulin levels decrease. In response, your body releases hormones from your liver, one of which is the stress hormone, cortisol. Cortisol tells the liver to release more glucose. So if youre in a state of stress, or if you have diabetes, your liver is more likely to over-react and release more glucose than you need. As a result,  your blood sugar levels will increase.

If youre your blood sugar goes up, and you havent eaten, its likely your liver release glucose into your bloodstream. Exercise is a vital way to utilize sugar in your blood and help your body return to a fat-burning state. 

Its uncommon, but fasting can cause you to experience hypoglycemia or low blood sugar. If you have diabetes, this can potentially be dangerous since diabetes medications already put you at risk for low blood sugar. Talk to your doctor about your intent to start a fast, especially if youre on diabetes medications. Its possible for you to fast safely when your doctor manages your diabetes medications appropriately.

Fasting Blood Glucose Level

A glucose level below 11.1 mmol/L on a random blood sample does not rule out diabetes. A blood test taken in the morning before you eat anything is a more accurate test. Do not eat or drink anything except water for 8-10 hours before a fasting blood glucose test. A level of 7.0 mmol/L or more indicates that you have diabetes.


If you have no symptoms of diabetes but the blood test shows a glucose level of 7.0 mmol/L or more, the blood test must be repeated to confirm you have diabetes. If you do have symptoms and the blood test shows a glucose level of 7.0 mmol/L or more, the test does not need to be repeated. See the separate leaflets called Type 1 Diabetes and Type 2 Diabetes for more details.

Urine Test For Blood Sugar

Blood Sugar Levels Chart

Urine does not normally contain glucose. The kidneys filter our blood, keeping substances the body needs, while getting rid of waste products. Your kidneys constantly reabsorb glucose so that it doesn’t enter your urine. However, if the glucose level goes above a certain level, the kidneys can’t reabsorb all of the glucose. This means that some glucose will ‘spill’ through the kidneys into the urine.

A simple dipstick test can detect glucose in a sample of urine. In a dipstick test a doctor or nurse uses a special chemical strip which he/she dips into a sample of your urine. Colour changes on the strip show whether there is glucose in the urine sample. If you have glucose in your urine, you are likely to have diabetes.

However, some people have kidneys that are more ‘leaky’ and glucose may leak into urine with a normal blood level. Therefore, if your urine contains any glucose, you should have a blood test to measure the blood level of glucose to confirm, or rule out, diabetes.

Is Diabetes More Common In Men Or Women

Studies show that type 1 diabetes is more common in men, and theyre more likely to pass it on to their offspring. However, although women previously showed more indication of type 2 diabetes, it is now equally prevalent between men and women.


Type 1 diabetes is an autoimmune condition that usually starts in childhood. With type 1 diabetes, your body attacks its own pancreas so it cannot produce insulin. Type 2 diabetes is far more common in adults, and although often milder than type 1, can still cause major health implications, including kidney disease or damage, heart disease, or stroke. Unlike type 1, with type 2 diabetes some insulin can be produced, but the body is either resistant to it or there is not enough. This insulin resistance develops in fat, liver, and muscle cells, hence the extensively researched correlation between obesity and type 2 diabetes.

What Are Normal Blood Sugar Levels After Eating

editorial processDanielle Weiss, MD

Dr. Danielle Weiss is the founder of Center for Hormonal Health and Well-Being, a personalized, proactive, patient-centered medical practice with a unique focus on integrative endocrinology. She enjoys giving lectures and writing articles for both the lay public and medical audiences. Dr. Weiss is Assistant Clinical Professor of Medicine at the University of California, San Diego. 

Your blood sugar level is influenced by several factors, including the food you eat. During digestion, carbohydrates are converted into sugar which your body uses as an energy source. Excess sugar from any source is stored in your cells for later use. When your cells contain too much sugar, though, it can lead to type 2 diabetes. This is why eating a balanced diet to maintain a normal blood sugar range is important.

Blood sugar levels can vary based on many factors, including age and life expectancy, comorbidities like heart disease, stress, and lifestyle factors like physical activity, smoking, or drinking alcohol.


Translating Your A1c To A Blood Sugar Level

Using this easy calculator from the ADA, you can translate your most recent A1C result to an eAG or estimate average glucose level.

You can also use this translation when working to improve your A1c and achieving closer to normal blood sugar levels. If you know an A1c of 6.5 is an average blood sugar level of 126 mg/dL or a range of 100 to 152 mg/dL, then you can look at your current blood sugar results on your CGM and meter and pinpoint which time of day youre frequently higher than this range.12% = 298 mg/dL or range of 240 347 11% = 269 mg/dL or range of 217 31410% = 240 mg/dL or range of 193 2829% = 212 mg/dL or range of 170 2498% = 183 mg/dL or range of 147 2177% = 154 mg/dL or range of 123 1856% = 126 mg/dL or range of 100 1525% = 97 mg/dL or range of 76 120

Normal blood sugar levels in a person without diabetes can result in an A1c as low as 4.6 or 4.7 percent and as high as 5.6 percent. 

Just a decade or two ago, it was rare for a person with type 1 diabetes to achieve an A1c result below 6 percent. Thanks to new and improved insulin and better technology like continuous glucose monitors and smarter insulin pumps, more people with diabetes are able to safely achieve A1c levels in the higher 5 percent range.

The Power Of Prevention

Fasting Blood Sugar Levels

The high prevalence of adult obesity in America, which is now around 35%, is largely to blame for the prediabetes epidemic, says Dr. Ganda. But if your blood sugar is on the high side, you don’t need to make drastic changes to see improvements. The Diabetes Prevention Program, a landmark study published 15 years ago, showed that cutting out 150 calories per day and walking briskly for 30 minutes, five days a week, cut the risk of developing diabetes by more than half . You should also avoid refined carbohydrates, such as white rice, foods made with white flour, and sugary treats like desserts and sodas. Losing weight is ideal but not absolutely mandatory.


“I tell my patients, don’t be disheartened if you don’t lose weight,” says Dr. Ganda. If you keep exercising regularly, even if your weight doesn’t change, your body composition will change. Losing fat and gaining muscle will improve your response to insulin, as will the exercise itself. “Think of doing exercise as having a little bit of extra insulin on board,” he says.

What Is A Fasting Blood Sugar Test

A fasting blood glucose test, also known as a fasting plasma glucose test or fasting blood sugar test, is a method for measuring the amount of glucose in the blood after a period of fasting. Most commonly, fasting occurs overnight and the test is performed first thing in the morning.

There are two primary purposes of a fasting blood glucose test:

  • To diagnose diabetes
  • To understand how different factors affect your blood sugar throughout the day

A fasting blood glucose measurement can be taken by a healthcare professional by blood draw and sent to a lab, or as a fingerstick test performed at home. The two processes are testing the same thing, so they are often referred to in the same way. A healthcare professional may order a lab test to eliminate other variables that may come into play with a fingerstick test, such as substances on the hand or not using a large enough blood drop.

If your healthcare team suspects that you may have prediabetes or type 2 diabetes, they may perform a fasting plasma glucose test or an A1C test. If you have already been diagnosed with diabetes, checking your fasting blood sugar level in the morning gives you a baseline blood sugar reading for your day. These tests can be performed at home as recommended by your healthcare team, using a blood glucose meter. However, the at-home blood glucose meter testing method is not intended for the diagnosis of diabetes.


Related Reading: Blood Sugar Levels: What is Normal, Low or High, Target Ranges & More

What Are Normal Blood Glucose Levels In Healthy Individuals

Blood sugar levels can either be normal, high, or low, depending on how much glucose someone has in their bloodstream. Glucose is a simple sugar thats present in the bloodstream at all times. Normal blood glucose levels can be measured when someone fasts, eats, or after theyve eaten. A normal blood glucose level for adults, without diabetes, who havent eaten for at least eight hours is less than 100 mg/dL. A normal blood glucose level for adults, without diabetes, two hours after eating is 90 to 110 mg/dL.   

Many factors affect blood sugar levels throughout the day:

  • Type of food consumed, how much, and when
  • Physical activity
  • Menstrual periods 
  • Alcohol 

An ideal blood sugar level for anyone without diabetes or prediabetes, regardless of age, in the morning should be less than 100 mg/dL. Remember, blood sugar levels can fluctuate throughout the day as a result of the factors previously mentioned.   

Normal Hba1c For Person Without Diabetes

For someone who does not have diabetes, a normal HbA1C level is below 5.7%. An A1C between 5.7% to 6.4% is indicative of prediabetes.


Its recommended that adults over the age of 45 or adults under 45 who are overweight and have one or more risk factors for diabetes have a baseline A1C checked. If the result is normal, the A1C should be checked every 3 years. If the result indicates prediabetes, the A1C should be checked every 1 to 2 years.

Normal And Diabetic Blood Sugar Ranges

25 Printable Blood Sugar Charts [Normal, High, Low] á? ...

For the majority of healthy individuals, normal blood sugar levels are as follows:

  • Between 4.0 to 5.4 mmol/L when fasting
  • Up to 7.8 mmol/L 2 hours after eating

For people with diabetes, blood sugar level targets are as follows:

  • Before meals : 4 to 7 mmol/L for people with type 1 or type 2 diabetes
  • After meals : under 9 mmol/L for people with type 1 diabetes and under 8.5mmol/L for people with type 2 diabetes

Now That Youre Checking Your Blood Glucose What Do The Numbers Mean

Depending on your diabetes treatment plan, your doctor or diabetes educator may advise you to check once a week, once a day or up to 10 times a day . But what does it mean when you see a 67, 101 or 350 on your meter? And what is a normal blood sugar, anyway? Great questions! After all, if you dont know what the numbers on your meter mean, its hard to know how youre doing.

The American Diabetes Association provides guidelines for blood glucose goals for people with diabetes, and the goals vary depending on when youre checking your glucose:

Fasting and before meals: 80130 mg/dl

Postprandial : Less than 180 mg/dl

Your blood glucose goals may be different, however. If youre younger, have had diabetes for a shorter amount of time or are not taking any medicine for your diabetes, your glucose goals might be a little tighter, or lower. Likewise, your blood glucose goals may be higher than what ADA recommends if youre older, have diabetes complications, or dont get symptoms when your blood glucose is low.

Bottom line: talk with your health-care provider about the following:

When to check your blood glucose How often to check your blood glucose What your blood glucose goals are

How To Maintain Healthy Fasting Blood Sugar Levels

It is Important to Follow A Healthy Diet to Keep Fasting Blood Sugar Levels from Rising High. Some Tips Include:

  • Lowering sodium intake
  • Reducing or completely avoiding sweetened snacks
  • Choosing whole-grain bread and pasta over low-nutrient and high-calorie white bread and pasta
  • Eating fiber-rich foods which help lower the blood glucose
  • Eating high-protein foods which help keep you feeling fuller and avoid mid-meal snacking

People on diabetic medication who are prone to experience sudden dips in blood sugar should follow a similar diet, and also take proactive steps to prevent such incidences. These include:

  • Having regular meals
  • Increasing food intake and having frequent snacks during higher than normal physical activity
  • Limiting or completely avoiding alcohol
  • Consulting a physician in case of vomiting or diarrhoea

Thus, a fasting blood sugar test done at regular intervals will help the patients and the doctors with a deeper understanding of the patients diabetes status and how the medications prescribed for the condition are helping the patient. Diabetes requires constant monitoring and the treatment may be needed to be changed over time. Diabetics can help themselves by maintaining a detailed health log and staying committed to the dietary and lifestyle changes prescribed by the doctor.

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Blood Sugar Levels And Diabetes

If you have diabetes, you may be wondering what your blood glucose should be. Hopefully your doctor, nurse practitioner, physicians assistant or whoever diagnosed you has given you answers to that question. Unfortunately, though, not everyone is given glucose goals. Or in some cases, it may have been a long time ago, and theyve since been forgotten. No worries well go over all that!

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