Blood Sugar Level Chart By Age
Blood sugar levels tend to rise with age due to an increase in insulin resistance and decrease in insulin sensitivity. In one study by the National Health Institute , each extra decade of age was linked to a 2.7 mg/dl increase in fasting glucose, and a 4.5 mg/dl increase in 2-hour post-prandial glucose levels.
Different Levels And What They Mean
The ranges of safe levels of blood glucose depend on factors such as what time of day it is and when you last ate. Safe levels of blood sugar are high enough to supply your organs with the sugar they need, but low enough to prevent symptoms of hyperglycemia or complications of diabetes which follow the National Institute of Diabetes and Digestive and Kidney Diseases guides. Dangerous levels of blood glucose are outside of this range.
The target levels can also vary if you have diabetes. For example, if you are diabetic and are monitoring your blood sugar, you might get a reading of 65 mg/dl. That is considered to be mild hypoglycemia, and you would be wise to eat 15 grams of fast-acting carbohydrates and retest your blood sugar in 15 minutes.
If you were not diabetic, you probably would not know that your sugar was low because you would not test and because you would not symptoms, and you would not act.
That is fine because your body is capable, under normal circumstances, of raising your blood glucose to healthy levels when needed, even if you have not eaten. It is important to keep them in control to help prevent issues like heart disease or nerve damage.
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If You Regularly Have High Blood Sugar Levels
Having high blood sugar levels regularly is not something you should live with. This is because in the long-term it can increase your risk of developing diabetes complications, such as neuropathy and retinopathy.
If you notice that your blood sugar levels are often high, you should contact your diabetes healthcare team. They will review your treatment and provide you with advice on how to get your blood sugar levels back within your target range. This advice may include increasing your medication.
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Symptoms Of High Or Low Blood Sugar
When the person has low blood sugar, they may experience hypoglycemia which can be characterized by-
- Sweating
- Dry mouth
- Headache
People with type 2 diabetes may experience symptoms of high or low blood sugar. The levels can be checked by pricking a finger to get a drop of blood and putting it on a glucose meter.
How Does Blood Sugar Level Work

With a lack of nutrients and food that contain glucose, the blood sugar level will begin to decline. This is known as hypoglycemia.
After blood sugar becomes low, the pancreas releases a peptide hormone called glucagon. When this happens, the glucose that is stored in the body for energy is instructed to release due to the liver. This causes the glucose to turn into glycogen, known as the glycogenesis process. This is what can help a body to regain energy as the readily stored glycogen, in the liver and muscles, will release into the body.
On the other hand, the blood sugar can also rise and become too high which is known as hyperglycemia.
When the body does not produce enough of the insulin hormone, blood sugar levels begin to increase. This is because glucose relies on the insulin hormone to help it absorb into the bloodstream. Usually, this occurs when the body cannot produce enough insulin, known as type 1 diabetes, or does not respond to insulin correctly, known as type 2 diabetes.
Eating too many processed foods can also cause your blood sugar level to rise. If there is not enough insulin present in the body, too much bad food can cause your blood sugar level to build up.
For those with a normal blood sugar level, this will be due to eating the right foods and your body being able to produce and respond to insulin.
You may be wondering what exactly causes an imbalance in blood sugar levels, so here is a roundup:
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How Are High Blood Sugar Levels Treated
Treating high blood sugar levels involves fixing what caused them in the first place. Your diabetes health care team will give you specific advice on how to keep your blood sugar levels in a healthy range. But here are some ways to manage the common causes of high blood sugar levels:
Reason for High Blood Sugar Level | What to Do |
---|---|
Not getting enough insulin or other diabetes medicine |
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Not following the meal plan |
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Not getting enough exercise |
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Illness or stress |
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Use of other medicines that can increase blood sugar |
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You Develop Sores That Tend To Heal More Slowly Than Usual
Cuts, scrapes, bruises, and other wounds heal more slowly in the presence of uncontrolled blood sugar, according to the National Institute of Diabetes and Digestive and Kidney Diseases. Diabetes causes nerve damage and affects circulation, especially in the lower legs and feet, which can delay healing because there isnt enough blood flow to the area. Even minor wounds are more prone to infections, which can become very serious and even result in amputations of the foot. You may notice drainage seeping onto your socks or an unpleasant smell if you develop a foot ulcer, notes the American Podiatric Medical Association.
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Symptoms Signs Causes Of Levels Of High Blood Sugar In The Blood
High blood sugar or hyperglycemia is an abnormally high blood sugar level in the blood. Hyperglycemia is a hallmark sign of diabetes and prediabetes.
Signs and symptoms of hyperglycemia include blurred vision, headaches, hunger, and …
The normal ranges for blood sugar levels in adults who do not have diabetes before eating or fasting the range begins at 72-99mg/dL while fasting ranges for those being treated for type 1 or type 2 diabetes range from 80 -130 mg/dL. According to the American Diabetes Association normal blood sugar levels before and after eating should be 80-130 mg/dL before eating a meal , and less than 180 mg/dL about 1-2 hours after eating a meal
High blood sugar ranges for people who dont have diabetes begins at 140 mg/dL or greater while for those being treated for diabetes, the high range begins at 180 mg/dL , called hypoglycemia.
What Is A High Blood Sugar Level Range
According to the American Diabetes Association , there are nearly 18 million diabetics in the United States, with nearly 25 percent of them unaware that they have the disease 1. Diabetes is a serious metabolic disorder that is caused by the pancreas not making enough insulin, or the body’s resistance to it. Insulin is a hormone that helps the body assimilate blood glucose to produce energy. When there is a problem metabolizing blood glucose, its concentrations rise in the blooda condition called hyperglycemia or high blood sugar.
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Who Is Most At Risk For Developing Diabetes
The following categories of people are considered “high-risk” candidates for developing diabetes:
- Individuals who are overweight or obese
- Individuals who are 45 years of age or older
- Individuals with first-degree relatives with diabetes
- Individuals who are African-American, Alaska Native, American Indian, Asia American, Hispanic/Latino, Native Hawaiian, Pacific Islanders,
- Women who developed diabetes while they were pregnant or gave birth to large babies
- Individuals with high blood pressure
- Individuals with high-density lipoprotein below 25 mg/dl or triglyceride levels at or above 250 mg/dl
- Individuals who have impaired fasting glucose or impaired glucose tolerance
- Individuals who are physically inactive engaging in exercise less than three times a week
- Individuals who have polycystic ovary syndrome, also called PCOS
- Individuals who have acanthosis nigricans — dark, thick and velvety skin around your neck or armpits
In addition to testing the above individuals at high risk, the American Diabetes Association also recommends screening all individuals age 45 and older.
Blood Sugar Levels Chart & Ranges
With the help of modern medicine and newly introduced at home treatments, common medical concerns such as blood sugar levels are now easier to manage than ever. The access to at home treatment and available sources has increased the ability to self-medicate and regularly check in with your health yourself.
There is still heightened concern for blood sugar levels due to the increase and ease of processed food and alcohol access across the world. But, with the right measures and plan, everyone can help avoid their blood sugar level from becoming abnormal.
According to the World Health Organisation , over 1.6 million deaths per year in America are due to diabetes. Fortunately, this figure can be decreased with the help of treatment and easy to manage at home testings.
Today, we will be discussing the top treatment methods, teaching you about blood sugar levels and how to manage them:
Contents
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When To See A Healthcare Provider
If you don’t feel like your usual self and think your blood sugar is elevated, test it to confirm. If your blood sugar happens to be elevated and it’s an isolated event, odds are that you can probably get it back to normal on your own. Go for a walk or do some light exercise, drink extra water, and take your medicine as prescribed.
On the other hand, if you are experiencing elevated blood sugars for several consecutive days, give your medical team a call, as you may need to tweak your treatment plan.
If you don’t have diabetes and notice any of these signs or symptoms, and are overweight or obese or have a family history of diabetes, you should schedule an appointment with your healthcare provider to be screened. Both Macro and microvascular complications of diabetes can occur prior to diagnosis, so the sooner you receive treatment, the better.
For Parents of Children Without Diabetes
If you’ve noticed that your child is drinking, eating, and urinating more often than usual, a trip to the healthcare provider is a good idea, especially if you’ve seen a quick change in weight. If the symptoms appear to be more severe and resemble those of DKA , go to the emergency room right away.
For Parents of Children How Have Diabetes
If your child has symptoms of hyperglycemia and their blood sugar is greater than 240 mg/dL, they should be tested for ketones. If the event of a positive test, depending on the severity of the ketones, you may be advised to go to the emergency room.
Is Hyperglycaemia Serious

The aim of diabetes treatment is to keep blood sugar levels as near to normal as possible.
But if you have diabetes, no matter how careful you are, you’re likely to experience hyperglycaemia at some point.
It’s important to be able to recognise and treat hyperglycaemia, as it can lead to serious health problems if left untreated.
Occasional mild episodes are not usually a cause for concern and can be treated quite easily or may return to normal on their own.
But hyperglycaemia can be potentially dangerous if blood sugar levels become very high or stay high for long periods.
Very high blood sugar levels can cause life-threatening complications, such as:
- diabetic ketoacidosis a condition caused by the body needing to break down fat as a source of energy, which can lead to a diabetic coma this tends to affect people with type 1 diabetes
- hyperosmolar hyperglycaemic state severe dehydration caused by the body trying to get rid of excess sugar this tends to affect people with type 2 diabetes
Regularly having high blood sugar levels for long periods of time can result in permanent damage to parts of the body such as the eyes, nerves, kidneys and blood vessels.
If you experience hyperglycaemia regularly, speak to your doctor or diabetes care team.
You may need to change your treatment or lifestyle to keep your blood sugar levels within a healthy range.
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High Blood Sugar Facts
- Low high blood sugar is abnormally high blood levels of insulin in the blood. Hyperglycemia is a hallmark sign of diabetes and prediabetes, and diabetes is the most common cause of it. Severely elevated glucose levels can result in a medical emergency like diabetic ketoacidosis or hyperglycemic hyperosmolar nonketotic syndrome .
- The primary symptom of hyperglycemia is excessive amounts of sugar in the urine. Other symptoms and signs of high blood sugar levels in the blood are blurred vision, hunger , and headaches.
- Other conditions that can cause high blood sugar are pancreatitis, Cushing’s syndrome, unusual hormone-secreting tumors, pancreatic cancer, certain medications, and severe illnesses.
- Insulin is the treatment for people with type 1 diabetes, and life-threatening increases in glucose levels. People with type 2 diabetes may be managed with a combination of different oral and injectable medications. Hyperglycemia due to medical conditions other than diabetes is generally treated by treating the underlying condition responsible for the elevated glucose.
Correcting High Blood Sugar Levels With Insulin
If you take insulin, one way to reduce blood sugar is to inject insulin.
However, be careful as insulin can take 4 hours or longer to be fully absorbed, so you need to make sure you take into account how much insulin you may already have in your body that is yet to be absorbed by the blood. Insulin that is yet to be absorbed by the blood is called active insulin.
If you decide to correct with insulin, watch you dont over correct as this can lead to hypoglycemia and can be dangerous, particularly so before bed.
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Levels In The Morning
The best time to check blood sugar levels in the morning is right when you wake up and before you eat anything. This gives you a glimpse of what may be happening overnight, and it gives you a baseline for the day.
These are goal levels, according to The Joslin Diabetes Center:
- Under 70 mg/dl if you do not have diabetes.
- 70 to 130 mg/dl if you have diabetes.
The dawn effect can often lead to a high morning measurement in diabetes. This is your bodys tendency to get ready for the day by raising blood sugar by increasing levels of counter-regulatory hormones the ones that counteract insulin as in normal blood sugar. For people with diabetes, you do not have the capacity to counterbalance this rise in blood sugar, so levels can be dangerously high.
Ways to lower your morning blood sugar value include:
- Eating dinner earlier
- Checking your medications making sure you are taking them properly and asking your doctor if they are correct
- Going for a walk after dinner
- Including protein with your dinner
High Blood Sugar Levels Treatment
The people who have the problem of high blood sugar levels must keep a record of their levels every day. You can do it easily with the help of a home glucose meter.
The meter is very easy to use. You just need to make a tiny prick in your finger to draw a drop of blood. This blood is placed on a strip that is inserted into the meter. Then the meter gives your glucose reading.
When you do it every day, you can easily manage your levels and avoid getting any health complications in the future.
Type 1 diabetes does not have a cure but with the help of insulin and medicines, it can be easily managed. You just need to follow the instructions of your doctor correctly.
Type 2 diabetes can be cured completely and the person can even get off medication. However, this can only be done by changing your lifestyle completely. Also, if your sugar is high then you need to take your medicines.
As far as lifestyle changes are concerned, you should exercise regularly, practice yoga, eat a well-balanced nutritious diet, and practice meditation . Do remember, not to avoid your doctors advice.
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Hba1c Test For Diabetes Diagnosis
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