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American Diabetes Association Blood Sugar Chart

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Which Is Right For You

Blood Sugar Levels Chart | Includes fasting and after eating

Finding the best glucose monitoring system that is right for you is about finding the choice that best suits your needs. By considering the benefits and limitations between the different systems that are available in Canada, you can find a system that meets your individual requirements while improving the efficiency and effectiveness of your diabetes care routine.

Our glucose monitoring comparison chart provides a summary of CGM, Flash glucose monitoring devices and test strips and meters.

Normal Fasting Blood Sugar For Person Without Diabetes

A normal fasting blood glucose for someone who does not have diabetes ranges from 70 to 99 mg/dl. The American Diabetes Association recommends a routine screening for type 2 diabetes starting at age 35. If the results are normal, the screening should be repeated every three years.

If have diabetes risk factors, which include being overweight or obese, having a family history of type 2 diabetes, having a history of gestational diabetes, or being of a certain race/ethnicity , you should be screened for diabetes sooner and repeat testing may be recommended more often.

Children and adolescents who have diabetes symptoms or who are overweight and have a family history of type 2 diabetes, are of African American, Latino, Asian American, Native American or Pacific Islander descent, who have signs of prediabetes or a mother who had gestational diabetes should be tested beginning at age 10 or the onset of puberty and then every three years thereafter.

A fasting blood sugar of 100 to 125 mg/dl is indicative of prediabetes, which is a condition where blood sugar levels are above normal but not high enough to be considered diabetes. Prediabetes is a risk factor for type 2 diabetes, heart disease and stroke. Its managed by lifestyle changes and, in some cases, medication.

Caution: Birth Control Pills

Types that have estrogen can affect the way your body handles insulin. Still, oral contraceptives are safe for women with diabetes. The American Diabetes Association suggests a combination pill with norgestimate and synthetic estrogen. The group also says birth control shots and implants are safe for women with the condition, though they can affect your blood sugar levels.

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Why Does Blood Glucose Level Rise In Diabetes

The food we eat is converted to glucose and released into the bloodstream. Therefore, blood sugar levels are high after eating. The increase in glucose level signals our pancreas to release insulin.

Insulin helps our body cells to absorb glucose. As a result, blood glucose level goes down / becomes normal again. This process of cell absorption helps in regulating/maintaining normal blood glucose levels.

But in the case of diabetes, our body becomes insulin resistant, or there is insulin deficiency. Due to this our body cells do not absorb blood glucose, resulting in high blood glucose levels, thus causing Diabetes which comes with health problems like thyroid, stress, loss of muscle weight, acidity, insomnia, low energy level, etc. Over a period of time, such high blood glucose levels can cause damage to nerves, kidneys, eyes, and heart. With the right changes in your habits of eating, exercising, sleeping patterns, and stress management we have seen more than 10.000 patients reversing their diabetes. Get started with your diabetes reversal journey, connect with top diabetes experts now.

Therefore if you have diabetes, it is essential to maintain your blood sugar readings at some typical acceptable values, which can be attained by having a healthy lifestyle that will aid the reversal of diabetes and following a sustainable diet plan that you can follow which includes staple food, easily available in your kitchen and does not include supplements.


Normal Hba1c For Person Without Diabetes

Normal blood sugar levels chart (comparison with 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 three years. If the result indicates prediabetes, the A1C should be checked every one to two years.

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Glucose Assessment By Continuous Glucose Monitoring


6.3 Standardized, single-page glucose reports from continuous glucose monitoring devices with visual cues, such as the ambulatory glucose profile, should be considered as a standard summary for all CGM devices. E

  • 6.4 Time in range is associated with the risk of microvascular complications and can be used for assessment of glycemic control. Additionally, time below target and time above target are useful parameters for the evaluation of the treatment regimen . C

  • CGM is rapidly improving diabetes management. As stated in the recommendations, time in range is a useful metric of glycemic control and glucose patterns, and it correlates well with A1C in most studies . New data support the premise that increased TIR correlates with the risk of complications. The studies supporting this assertion are reviewed in more detail in Section 7, Diabetes Technology they include cross-sectional data and cohort studies demonstrating TIR as an acceptable end point for clinical trials moving forward and that it can be used for assessment of glycemic control. Additionally, time below target and time above target are useful parameters for insulin dose adjustments and reevaluation of the treatment regimen.

    What Are The Blood Sugar Targets For Diabetes

    The ADA recommendations are general guidelines and may be modified according to individual situations. Discuss with your medical provider what treatment goals are best for you. For example, if you are not taking any medications or your diabetes treatment doesnt increase the risk of low blood sugars your provider may recommend that you keep your blood sugar in the normal range or closer to the normal range. Pregnant women or women thinking about getting pregnant also have lower blood glucose targets.

    When you have diabetes and are treated with insulin replacement therapy or medications that increase insulin release from your pancreas, the insulin levels in your blood stream are imperfectly matched to how much insulin you actually need and there is always a risk of having too much insulin effect. Too much insulin effect can cause a low blood sugar or hypoglycemia. To minimize this risk, your provider may recommend that you target higher blood sugars such as a pre-meal blood sugar of 90-130 mg/dl and post meal blood sugar of less than 180 mg/dl.

    American Diabetes Association Recommendations

    After Meal Glucose Level < 180 mg/dl

    *Hemoglobin is a measure of your average blood glucose control over the previous 3 months. Think of the A1c as a long-term blood glucose measure that changes very gradually.

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    Recommended Blood Sugar Targets For Most People With Diabetes*

    Your targets may not be the same as the examples in this chart. Your targets are important and should be specific to you.

    4.0 to 7.0 5.0 to 10.0

    * This information is based on the Diabetes Canada 2018 Clinical Practice Guidelines for the Prevention and Management of Diabetes in Canada and is a guide.** A1C is a measurement of your average blood sugar control for the last two to three months and approximately 50 per cent of the value comes from the last 30 days.

    Target Blood Sugar Range For Gestational Diabetes

    Safe at School: Chapter 5 – Blood Glucose Monitoring

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    Why Your Blood Sugar Level May Be Low

    If blood sugar drops below 70 mg/dL, it is below normal levels. This can be caused by a variety of factors, such as:

    • Not eating enough or missing a meal or snack
    • Reducing the amount of carbohydrates you normally eat
    • Alcohol consumption especially if youre drinking on an empty stomach
    • Taking too much insulin or oral diabetes medication based on carbohydrates or activity levels
    • Increased physical activity
    • Side effects from medications

    If you have diabetes, keep your blood glucose meter and sources of fast-acting glucose close by in case your blood sugar drops. This is especially important for people with hypoglycemia unawareness, which is a condition that causes symptoms of low blood sugar to go unnoticed.

    Eating balanced meals and snacks at regular times throughout the day is a big part of maintaining normal blood glucose levels. Check out our article on meal planning for diabetes to better understand the three macronutrients where calories come from and which have the biggest effect on blood sugar.

    Meal Planning for Diabetes: How to Optimize Your Diet >

    Everyone will respond differently to certain factors, which is why its important to have individualized target glucose levels. To help you reach your target blood glucose goals, work with your healthcare provider to discuss modifications to your diet, physical activity, or medications, and alert them of other factors like a recent illness or stressful event.

    Blood Sugar Levels Chart

    The above chart and the one below are exactly the same, in different formats.

    More than 11.1 mmol/l

    These are the diagnostic ranges. As you can see, the normal range for fasting glucose is under 100 mg/dl or 6 mmol/l. Though just to note, there is some debate about the normal range in mmol/l, ranging from 5.5 to 6 mmol/l. So depending what chart you look at, you may see either of those numbers.

    After a meal, the maximum reading you ideally want to see is 140 mg/dl or 7.8 mmol/l.

    If youre getting readings above this, you would be diagnosed with prediabetes or type 2 diabetes, as shown in the charts above.

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    What Is The Glucose Tolerance Test Like Do I Have To Fast

    Fast overnight: Typically youâre instructed to eat a late meal the night before the test and then to eat or drink nothing after that, except for sips of water. The fasting period is usually 8 to 14 hours before the test, so youâll want to schedule the test for first thing in the morning.

    Hereâs what to expect at the lab:

    • First blood draw: When you arrive for the test, a blood sample is taken to measure your fasting blood glucose level.
    • An even sweeter drink: Next, youâll drink either a more concentrated dose or a larger volume of glucose solution.
    • Three more blood draws: Brace yourself for three more arm pricks, as your blood is tested every hour for the next three hours. The lab tech should alternate arms each time your blood is drawn.

    Some tips to make your test more comfortable:

    • Have someone drive you to and from the test in case you feel lightheaded or are low on energy due to fasting.
    • Bring something to distract you, because you have to stay nearby when your blood is not being drawn.
    • Bring something to eat right after the final blood sample is taken, because youâll probably be starving.

    Results: After the test, if one of the readings is abnormal, you may have to take another test later in your pregnancy. Or your provider may ask you to make some changes in your diet and exercise routine. See âWhat is the treatment for gestational diabetes?â below.

    How To Use A Blood Sugar Meter

    What Is Normal Blood Sugar?

    There are different kinds of meters, but most of them work the same way. Ask your health care team to show you the benefits of each. In addition to you, have someone else learn how to use your meter in case youre sick and cant check your blood sugar yourself.

    Below are tips for how to use a blood sugar meter.

  • Make sure the meter is clean and ready to use.
  • After removing a test strip, immediately close the test strip container tightly. Test strips can be damaged if they are exposed to moisture.
  • Wash your hands with soap and warm water. Dry well. Massage your hand to get blood into your finger. Dont use alcohol because it dries the skin too much.
  • Use a lancet to prick your finger. Squeezing from the base of the finger, gently place a small amount of blood onto the test strip. Place the strip in the meter.
  • After a few seconds, the reading will appear. Track and record your results. Add notes about anything that might have made the reading out of your target range, such as food, activity, etc.
  • Properly dispose the lancet and strip in a trash container.
  • Do not share blood sugar monitoring equipment, such as lancets, with anyone, even other family members. For more safety information, please see Infection Prevention during Blood Glucose Monitoring and Insulin Administration.
  • Store test strips in the container provided. Do not expose them to moisture, extreme heat, or cold temperatures.
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    Glycosylated Hemoglobin Or Hemoglobin A1c

    Reflects average blood sugar levels over the preceding 90-day period. Elevated levels are associated with prediabetes and diabetes. Individuals with diabetes have an increased risk of a cardiac event. A person with diabetes has the same risk for heart attack as a person without diabetes, who has experienced one heart attack, having a second heart attack. Aggressive global preventive risk reduction efforts, such as lower LDL targets, diet, exercise and blood pressure control, are recommended.

    Goal values :

    • A range of 5.7-6.4 percent indicates an increased risk for development of diabetes , and lifestyle interventions may be beneficial.
    • A value equal or greater than 6.5 percent is considered diabetes.


    This test may be measured any time of the day without fasting.

    Glycosylated hemoglobin is blood glucose attached to hemoglobin . This test is often called the “diabetes report card.” It reflects the average blood sugar for the two to three month period before the test.

    To calculate the average blood glucose level from the HbA1C:

    HbA1C level x 33.3 86 = average blood glucose level for the past 90 days. HbA1C can be helpful to track diabetes control over time.

    Who Should Check

    Talk to your doctor about whether you should be checking your blood glucose. People who may benefit from checking blood glucose regularly include those:

    • taking insulin.
    • having a hard time reaching your blood glucose targets.
    • having low blood glucose levels.
    • having low blood glucose levels without the usual warning signs.
    • have ketones from high blood glucose levels.

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    How Do I Check

    People with diabetes check their blood glucose levels by poking their fingertips and using a blood glucose meter or a continuous glucose monitor to measure the blood glucose level at that moment. Read on to find out how to use a blood glucose meter. To find out more about CGMs, start by talking to your doctor.

    How Do Carbs Affect Blood Sugar

    A1C Test for Diabetes, Animation

    Carbs in food make your blood sugar levels go higher after you eat them than when you eat proteins or fats. You can still eat carbs if you have diabetes. The amount you can have and stay in your target blood sugar range depends on your age, weight, activity level, and other factors. Counting carbs in foods and drinks is an important tool for managing blood sugar levels. Make sure to talk to your health care team about the best carb goals for you.

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    How Is Gestational Diabetes Diagnosed

    The American Diabetes Association encourages doctors to routinely screen pregnant women for signs of gestational diabetes. If you have no known history of diabetes and normal blood sugar levels at the beginning of your pregnancy, your doctor will likely screen you for gestational diabetes when youre 24 to 28 weeks pregnant.

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    What Is The Two

    The two-hour glucose tolerance test is basically a shortened version of the three-hour tolerance test. If you get this test, you likely wonât do the screening test first, which is why the two-hour version is sometimes referred to as the âone-stepâ glucose tolerance test.

    Overnight fast: Typically youâre instructed to eat a late meal the night before the test and then to eat or drink nothing after that, except for sips of water. The fasting period is usually 8 to 14 hours before the test, so youâll want to schedule the test for first thing in the morning.

    Hereâs what to expect at the lab:

    • First blood draw: When you arrive for the test, a blood sample is taken to measure your fasting blood glucose level.
    • Sweet drink: Next, youâll drink a very sweet drink, which usually contains 75 grams of glucose.
    • Two more blood draws: Your blood will be drawn at one hour and two hours after the drink.
    • Results: If any of your blood sugar readings are abnormal you will be diagnosed with gestational diabetes.

    This chart shows the levels that the American Diabetes Association considers abnormal at each interval of the two-hour glucose tolerance test :


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