Metabolic Health

What Should Normal Blood Sugar Level Range Be?

Reviewed by

Shifa Fathima

For an individual living with diabetes, one of the most important things to deal with would be their blood sugar levels. Have you been diagnosed with this condition? If yes, you know the daily struggles associated with keeping these levels in check and how almost everything in your life might revolve around the effective control of the sugars and maintaining a normal blood sugar range. Every decision that you might take would be preceded by the thought “how will this affect my blood sugars?” How exhausting must this get when each aspect in life, even seemingly insignificant ones like planning dinners, picnics, movies, etc would have to center around the managing of blood sugars. People living with diabetes do not have it easy. The internal struggle, however, goes unnoticed by most. 

What are Normal Blood Glucose Levels?

To understand what the blood sugar level normal range would be, it would first be vital to understand why this topic is given so much importance. Basically, a person with diabetes has to deal with abnormal levels of glucose in their bloodstream. Due to the lack of production of insulin, there is no regulation of the overall glucose levels in the body which leads to a higher level of blood sugar range overall. These high levels, if they persist for a long time, could lead to several fatal complications and consequences in the person. This is why doctors emphasize the regular testing of sugars. If you encounter a person with diabetes or know someone who is living with it, you will almost always see them carry their glucometer around to be able to check their range at any point in time in case they are experiencing symptoms of highs or lows.

You might be thinking about what is the normal range for blood sugar now that you know why it is important to maintain normalcy. For any individual, whether they have diabetes or not, the normal blood sugar range would be 90-110 mg/dL. In a person living with diabetes, they have to struggle hard and make sure that their levels are also within this range for the maximum time. In case they experience too many highs or frequent lows, it may also affect their overall three-monthly HbA1c levels. A constant high HbA1c level could be detrimental and can have severe irreversible long-term impacts. 

What are Normal Blood Glucose Levels in Healthy Individuals?

In healthy individuals or people who are not dealing with diabetes, the blood sugar level normal range would be between 90-110 mg/dL. This range is not very rigid and at times even a reading of 130 or 140 mg/dL can be considered normal. To understand this better, you can look at the levels of blood sugar at different times in the day.

  • Fasting – Usually, the blood sugar range in the morning before breakfast can be anywhere around 80-100 mg/dL
  • Post meals – The post-meal sugar levels in healthy individuals can go up to 150 mg/dL without raising any alarm signs or warnings. This may depend on what they ate, their metabolism, body weight, etc.
  • Random – One of the most important indicators of a healthy individual would be a measure of their random blood sugar level. Anything between 90-130 mg/dL can be considered normal in a non-diabetic person.

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Blood Glucose Levels Charts for those with Diabetes

Now that you know how random blood sugar works with people who aren’t diagnosed, it would be important to gain an insight into how they look for people living with diabetes. This would help you manage your levels as you will know the desired range you need to get them down to. If you know someone who has been diagnosed, it can also be a guide for you to help them.

These levels will be depending on the age of the person diagnosed. Doctors often provide guidelines and a blood sugar levels chart by age to be able to cater to the specific needs of the person. Several factors can affect these levels in the age groups. Adults might have to deal with stress factors, children may have lower levels due to the exercise and playing that they indulge in, for the geriatric population, other comorbidities would play a role in the achievement of a normal blood sugar range most of the time. 

Normal Blood Sugar Levels for Children (Below 6 Years of Age)

For children, we see maximum fluctuations in a day as they are involved in several activities and situations that may increase or decrease their blood glucose levels. Essentially, a range as wide as 80 to 200 mg/dL can be considered normal for children under 6 years of age. Parents of children with diabetes might have to be super vigilant even in ensuring the random blood sugar normal range for children – especially after they sleep.

Normal Blood Sugar Levels for Adolescents (6-12 Years of Age)

For any kids between the age range of 6 and 12, there is a fluctuation but not as much as for younger kids. Since they are active and in their formative years, they may have a faster metabolism and their bodies might be able to break down the glucose much faster. Teach the children to check their random blood sugar level regularly and notice signs of highs and lows.

Normal Blood Sugar Levels for Teens (13-19 Years of Age)

Dealing with teenagers may not be an easy task in general, teaching them to take responsibility and manage their symptoms could prove to be an even tougher albeit important task for parents. They go to school, play sports, learn hobbies, sleepovers, and spend a lot of their time wanting to be away from constraints. To do that, they need to keep their random blood sugar and even overall HbA1c parameters in check.

Normal Blood Sugar Levels for Adults (20+ Years of Age)

Adults are responsible. Most of them are determined to ensure that this condition does not affect their lives with long-term effects. They would want to keep their levels in the normal blood sugar range so that they can go ahead with their daily routines as stress-free as possible.

Low Blood Glucose Levels - Symptoms

One of the most dangerous things a person with diabetes could experience is low blood sugar. Recognizing the symptoms before it becomes fatal would be super important. Signs may differ, however, keep a lookout for a few common ones like:

  • Dizziness
  • Blurred vision
  • Shaking/trembling of hands and feet
  • Palpitations and difficulty breathing
  • Tingling lips
  • Confusion, etc

If this happens, immediately check the sugar levels and take a tablet of glucose – 15 grams of glucose. 

High Blood Glucose Levels - Symptoms

Hyperglycemia may not be immediately fatal but can cause a condition called diabetic ketoacidosis (DKA) which can lead to a diabetic coma. Other chronic conditions like heart, liver, or kidney diseases are also common. 

Some symptoms to check for are:

  • Fatigue and tiredness
  • Headaches
  • Anxiety
  • Extreme thirst and hunger
  • Frequent urination
  • Parched throat

In case the levels are more than 250/300 mg/dL, take an immediate correction dose to bring the blood sugar range to normal.  

When to see a Doctor 

Knowing when to see your endocrinologist is important in the life of any person with diabetes and even their caretakers. Learn all about the blood sugar levels and their normal ranges to be able to understand what to look out for. In case of frequent lows, unmanageable highs, traces of ketones in the urine, continuous blurred vision, etc. visit your doctor. Ideally, you should be visiting them every 3 months after your HbA1c test. 

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