Can Drinking A Lot Of Water Lower Your Blood Sugar Levels
Although feeling very thirsty is a symptom of a hyper, drinking a lot of water will not bring your blood sugar levels down. It will only help to reduce your risk of dehydration.
Its important that you take your diabetes medication to bring your blood sugar levels down. If you have consistently high blood sugar levels, you will need to follow the advice below and speak to your diabetes healthcare team.
Great Bedtime Snacks For People Living With Diabetes
For some people, a healthy bedtime snack helps to prevent glucose swings during the night. By eating a small snack that is full of protein and healthy fats , your body may be better able to avoid an overnight high but if you take insulin, be sure to cover the carbohydrates in your snack even if it only requires a small dose of insulin.
Here are some snack ideas:
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Plain nuts or seeds try eating a small handful
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Raw vegetables, such as carrots, celery, cucumbers, or tomatoes, with a small amount of hummus or peanut butter
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Plain yogurt, and you can add berries or cinnamon
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How Common Is Low Blood Glucose
Low blood glucose is common among people with type 1 diabetes and among people with type 2 diabetes who take insulin or some other diabetes medicines. In a large global study of people with diabetes who take insulin, 4 in 5 people with type 1 diabetes and nearly half of those with type 2 diabetes reported a low blood sugar event at least once over a 4-week period.2
Severely low blood glucose, defined as when your blood glucose level drops so low you cant treat it yourself, is less common. Among U.S. adults with diabetes who take insulin or some diabetes medicines that help the pancreas release insulin into the blood, 2 in 100 may develop severely low blood glucose each year.3
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Manage Your Stress Level
When youre stressed, your bodys adrenal glands release cortisol. Cortisol triggers the fight-or-flight response, which results in physical changes such as your pupils dilating and heart rate increasing. Cortisol also promotes hyperglycemia and reduces insulin levels.
The problem with chronic stress is that cortisol levels remain increased for much longer than is healthy. Prolonged stress can cause health problems, including the risk of having blood sugar spikes. Some studies have found that cortisol is associated with increased blood sugar levels in people with type 2 diabetes.
Some examples of stress-relieving activities include talk therapy, exercise, doing a hobby you enjoy, taking a vacation, or anything that helps reduce your stress.
Why Is It Important To Reduce The Size And Duration Of These Spikes

Reducing these spikes may help you to increase the amount of time you spend in your target blood sugar range , which will have a positive impact on your future health. You should consult your healthcare team to understand the best target range for you, as this will differ from person to person. However, the International Society for Paediatric and Adolescent Diabetes recommends a target of 5.0-10.0 mmol/L .
Symptoms of a high blood sugar level also vary in individuals, but they may cause you to feel thirsty, tired, stressed and need to go to the toilet a lot. In the short term, by avoiding prolonged high blood sugar readings after eating, you should also reduce the occurrence of these symptoms and improve your energy, cognitive and athletic ability and overall mood.
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High Blood Sugar Causes
You may be thinking that hyperglycemia can happen just from eating a super-sugary food, but its not really as simple as that. Sure, eating a lot of sugar or carbs can elevate your blood sugar level, but thats typically when your pancreas kicks into gear and creates insulin to move that glucose into cells throughout the body.
But when someone has diabetes, this finely tuned system gets thrown out of whack. In type 2 diabeteswhich accounts for 90% to 95% of diabetes in adults, according to the CDCthe body either cant make enough insulin or cant utilize insulin well, according to the NIDDK. If someone has prediabetes, their blood glucose will be higher than normal but not quite in the type 2 diabetes range yet, per the NIDDK. And in type 1 diabetes, the body does not make insulin or makes very little.
In any case, the result is extra sugar hanging around the bloodstream, making you feel like total crap in the short term and putting your health at risk in the long term.
Treating And Managing Hyperglycaemia
If your blood sugar level is slightly high for a short time, emergency treatment wont be necessary. But if it continues to rise you may need to act fast to avoid developing diabetic ketoacidosis .
If your blood sugar level is 15 mmol/l or more, you should check your blood or urine for ketones. If ketones are present, it is likely that you do not have enough insulin in your body. This means you may need to increase your dose or give yourself an extra dose. Talk to your diabetes team about how to do this if you are unsure.
You should also try to drink plenty of sugar-free fluids to prevent dehydration. And if you are feeling unwell, especially if you are vomiting, you should follow any sick day rules you have been given and contact your diabetes healthcare team for advice.
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Why Do These Symptoms Matter For Diabetics
These symptoms are essential for diabetics to understand, because they may encounter high or low blood sugar levels from time to time.
A cold or virus can cause sudden high blood sugar levels, and understand the symptoms means knowing how to deal with hyperglycemia or hypoglycemia.
People with diabetes who can recognise the symptoms can avoid levels that lead to medical emergencies such as diabetic ketoacidosis
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Signs That Its Time To Get Medical Help
Keeping a close tab on your blood glucose is critical for your overall health and wellness. If you are experiencing concerning symptoms or consistently low or high glucose counts, its time to see your doctor.
- Increased thirst, dry mouth, and frequent urination with blood glucose over 250.
- Experiencing hypoglycemia or hyperglycemia symptoms that do not improve with intervention. Symptoms include:
- Hypoglycemia: Shaking, impaired vision, weakness/fatigue, dizziness, sweating, headache, and irritability. If you are experiencing hypoglycemia symptoms, check your glucose monitor and treat if you are below 70. Seek medical attention if your symptoms do not improve after eating.
- Hyperglycemia: Blurred vision, frequent urination, hunger, dry skin, drowsiness, nausea, and extreme thirst. It is essential to be aware of symptoms caused by blood sugar elevations, as your body can grow used to these symptoms and cause long-term complications.
If anything is out of the ordinary with your blood glucose or how youre feeling, reach out to your doctor or your diabetes educator for assistance, Crosby said. Were your partner in health, and were here to help.
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What Is Low Blood Glucose
Low blood glucose, also called low blood sugar or hypoglycemia, occurs when the level of glucose in your blood drops below what is healthy for you. For many people with diabetes, this means a blood glucose reading lower than 70 milligrams per deciliter .1 Your number might be different, so check with your doctor or health care team to find out what blood glucose level is low for you.
Can Hyperglycemia Be Treated
Your doctor may recommend a low-impact exercise program as your first line of defense. If youre already following a fitness plan, they may recommend that you increase your overall level of activity.
Your doctor may also suggest that you reduce glucose-rich food intake. Its important to maintain a balanced diet and stick to healthy food portions. If you arent sure where to begin, your doctor can refer you to a dietician or nutritionist who can help you establish a diet plan.
If these changes dont help lower your high blood sugar, your doctor may prescribe medication. If you have diabetes, your doctor may prescribe oral medications or change the amount or type of insulin youve already been prescribed.
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Type 1 Diabetes Sugar Spike Overnight
In type 1 diabetes, the pancreas does not produce insulin.
The insulin receptor sites may be in perfect condition, and there may be plenty of them, too, but glucose will never make it to these sites if theres no insulin to shuttle over the glucose.
Type 1 diabetics, then, must take insulin injections.
If theyre careless with managing this autoimmune disease, an overnight surge in blood sugar can result due to insufficient insulin.
Dr. Besser provides comprehensive family care, treating common and acute primary conditions like diabetes and hypertension. Her ongoing approach allows her the opportunity to provide accurate and critical diagnoses of more complex conditions and disorders.
Lorra Garrick has been covering medical, fitness and cybersecurity topics for many years, having written thousands of articles for print magazines and websites, including as a ghostwriter. Shes also a former ACE-certified personal trainer.
Symptoms Of A Blood Sugar Spike

The longer your blood sugar levels stay elevated, the more symptoms you are likely to develop, and the more damage is being done to your body. While there are some hallmark symptoms of high blood sugar levels , they can vary from person to person.
Learning to recognize your individual symptoms of high blood sugar early on can help minimize any damage to your body and keep your diabetes in control.
Common symptoms of high blood sugar include:
- Frequent urination
- Numbness or tingling in your hands or feet
If you are experiencing any of these symptoms, get your blood sugar level tested. It can be as simple as a small finger poke but can go a long way in helping you manage your blood sugar levels.
If you do not have diabetes and are experiencing any of these symptoms, seek medical attention as soon as you can to get your blood sugar levels tested. Early identification of high blood sugar levels and diabetes can save your life.
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Low Blood Sugar Levels : The Root Causes
Many different factors can cause a dip in your blood sugar levels. Here are some of the most common causes:
- People with diabetes are more likely to experience hypoglycemia than people without diabetes. Therefore, you may need to take synthetic insulin. It may also result from diabetes medications used to control blood sugar levels.
- The most vulnerable patients to hypoglycemia are those who skip meals while using blood sugar-lowering medications.
- People who dont consume enough calories through their meals or snacks or have insufficient carbs throughout the day are more likely to experience hypoglycemia.
- A study found that excessive alcohol consumption without enough calories can cause hypoglycemia. Usually, when you dont eat, and your blood sugar drops, your pancreas releases a hormone that prompts your liver to release glucose from storage into your bloodstream, raising your blood sugar level.
- Increasing your exercise intensity or duration can lower your blood sugar. So make sure to take precautions to prevent your blood sugar levels from dropping too low after intense exercise.
- Health conditions, such as liver illnesses, hormonal imbalances, and prolonged starvation, might also affect your blood sugar.
What Should My Blood Sugar Level Be
When youâre first diagnosed with diabetes, your diabetes care team will usually tell you what your blood sugar level is and what you should aim to get it down to.
You may be advised to use a testing device to monitor your blood sugar level regularly at home.
Or you may have an appointment with a nurse or doctor every few months to see what your average blood sugar level is. This is known as your HbA1c level.
Target blood sugar levels differ for everyone, but generally speaking:
- if you monitor yourself at home with a self-testing kit a normal target is 4 to 7mmol/l before eating and under 8.5 to 9mmol/l 2 hours after a meal
- if your HbA1c level is tested every few months a normal HbA1c target is below 48mmol/mol
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How Do I Detect Spikes In My Sugar Levels
The exact timing of blood sugar spikes can vary from person to person and meal to meal. However, on average, the post-meal peaks tend to be about one hour and 15 minutes after starting a meal.
The best way to measure post-meal patterns is by using a continuous glucose monitor or Flash monitors. These devices can give you a clear view, including graphs, of what happens with the glucose levels after meals without the need for finger pricking . You can ask your diabetes health team if they are available for you as they are not available to everybody.
If you are not using a CGM, then please speak to your healthcare team about the best way to do this for you with finger prick testing.
How do I know it is a spike?
There is no universal answer or specific guidelines on when a sugar level is too high after meals. However, if post-meal readings are consistently above your target range , then you should discuss whether it would be beneficial for you to address these spikes and how to do this, with your healthcare team .
If you are reviewing your post-breakfast sugar levels, you should also be aware of changes in your hormones in the morning, which cause increases in sugar levels . This Digibete video may help.
Some ways to reduce blood sugar spikes after meals
1. Choose low glycaemic index foods
When blood sugar levels are low or hypoglycaemic we need high glycaemic index foods , such as dextrose tablets or juice, that are absorbed quickly to raise our levels and to treat the hypo.
How Is Hyperglycemia Diagnosed
If you have diabetes and notice a sudden change in your blood sugar levels during your home monitoring, you should alert your doctor of your symptoms. The increase in blood sugar may affect your treatment plan.
Regardless of whether you have diabetes, if you begin experiencing any symptoms of hyperglycemia, you should speak to your doctor. Before going to your appointment, you should note what symptoms youre experiencing. You should also consider these questions:
- Has your diet changed?
- Have you had enough water to drink?
- Are you under a lot of stress?
- Were you just in the hospital for surgery?
- Were you involved in an accident?
Once at your doctors appointment, your doctor will discuss all of your concerns. Theyll perform a brief physical exam and discuss your family history. Your doctor will also discuss your target blood sugar level.
If youre age 59 or younger, a safe blood sugar range is generally between 80 and 120 milligrams per deciliter . This is also the projected range for people who dont have any underlying medical conditions.
People who are age 60 or older and those who have other medical conditions or concerns may have levels between 100 and 140 mg/dL.
Your doctor may conduct an A1C test to determine what your average blood sugar level has been in recent months. This is done by measuring the amount of blood sugar attached to the oxygen-carrying protein hemoglobin in your red blood cells.
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You Have Noticeably Blurry Vision And Frequent Headaches
You may notice that your vision isnt as clear as it used to be and that things may appear a bit blurry. High blood sugar levels can lead to swollen lenses in your eye from fluid leaking in, according to the Joslin Diabetes Center in Boston. This changes the shape of the lens, which makes it unable to properly focus, causing blurred vision. You may also find yourself struggling at work, having difficulty driving, and suffering from frequent headaches, Emanuele notes.
Symptoms Of High Blood Sugar
Learning to recognize the symptoms of hyperglycemia can help you successfully manage your diabetes.
Some people with diabetes immediately feel the symptoms of high blood sugar. Others dont because their symptoms are mild or vague.
Symptoms of hyperglycemia typically begin when your blood glucose goes above per deciliter . Symptoms can worsen the longer its untreated.
Symptoms of a blood sugar spike may include:
- frequent urination
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Surprising Things That Can Spike Your Blood Sugar
When you first found out you had diabetes, you tested your blood sugar often. Doing so helped you understand how food, activity, stress, and illness could affect your blood sugar levels. By now, youve got it figured out for the most part. But thenbam! Something makes your blood sugar zoom up. You try to adjust it with food or activity or insulin, and it dips really low. Youre on a roller coaster no one with diabetes wants to ride.
Do you know all these blood sugar triggers?
Knowledge is power! Look out for these surprising triggers that can send your blood sugar soaring: