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What Causes Low Blood Sugar Levels


What If Im Experiencing Hypoglycemic Episodes Even Though My Doctor Has Confirmed That Im Not Diabetic Or Prediabetic

Hypoglycemia – What Causes Low Blood Sugar Levels

If you have low blood sugar and dont have diabetes or prediabetes, it can be a sign of another serious health issue such as a tumor, hormone deficiency, kidney disorder, anorexia, or other eating disorder, all of which can cause dangerously low blood sugar.

Anorexia has the highest mortality of any psychiatric disorder, and the cause of death can be hypoglycemia, so take your illness seriously and seek help if you suspect your eating disorder may be progressing to the point where it is causing you to faint or experience other signs and symptoms of dangerously low blood sugar. The National Eating Disorders Association has resources on how to identify the signs that you may have an eating disorder, a hotline for help, as well as easily accessible information on everything from how to know when you need help to how to find quality treatment options in your zip code.

People who are not diabetic don’t spontaneously have hypoglycemia for no reason, explains Dr. Christofides. Its often an indication of another underlying issue, such as a hormone deficiency or eating disorder, so its important to schedule an appointment with your doctor to determine the cause in order to prevent complications.

Common causes of hypoglycemia in people without diabetes include:


  • Pancreatic tumor
  • Medication that inhibits the proper production of insulin
  • Hepatitis or kidney disorders
  • Hormone deficiencies
  • Anorexia and other eating disorders

Can A Continuous Glucose Monitor Help With Low Blood Sugar

A continuous glucose monitor measures the bodys glucose levels in real-time by sensing the glucose present in tissue fluid . A CGM typically provides your glucose level every five minutes, which can be really helpful for tracking and finding patterns in how your glucose changes throughout the day. With CGM you can see how much time you spend in your target glucose range each day , notice trends, and develop strategies to improve your diabetes management.

CGMs can sound alerts when glucose levels drop below a certain threshold or are predicted to do so soon. This can be especially helpful for people who experience hypoglycemia unawareness, nighttime low blood sugar, or frequent hypoglycemic events. CGMs also allow you to share your glucose readings with your loved ones and care-partners in real time, so that they can let you know or help you out if your blood sugar starts to drop.

If you are interested in trying CGM, ask your healthcare team if the technology is available to you. You can also try ten-days of CGM for free.

How To Treat Someone Who’s Having A Seizure Or Fit

Follow these steps if someone has a seizure or fit caused by a low blood sugar level:

  • Stay with them and stop them hurting themselves lie them down on something soft and move them away from anything dangerous .
  • After the seizure or fit stops, give them a sugary snack.
  • Tell your diabetes care team if you ever have a severe hypo that caused you to have a seizure or fit.


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    How Can I Prevent Low Blood Sugar

    Your best bet is to practice good diabetes management and learn to detect hypoglycemia so you can treat it earlybefore it gets worse.

    Monitoring blood sugar, with either a meter or a CGM, is the tried and true method for preventing hypoglycemia. Studies consistently show that the more a person checks blood sugar, the lower his or her risk of hypoglycemia. This is because you can see when blood sugar levels are dropping and can treat it before it gets too low.

    If you can, check often!

    • Check before and after meals.
    • Check before and after exercise .
    • Check before bed.
    • After intense exercise, also check in the middle of the night.
    • Check more if things around you change such as, a new insulin routine, a different work schedule, an increase in physical activity, or travel across time zones.

    What Are Blood Sugar Levels

    Hypoglycemia low blood sugar symptoms

    Blood sugar levels, also known as blood glucose level, is the level of sugar/glucose present in the blood. Glucose is a simple version of sugar which comes from the food we eat. Therefore, the more food you consume with high sugar levels over a period of time, will typically increase your blood sugar level.


    Glucose comes from the foods we eat and its sugar content. When a person consumes a food with high sugar content, that is turned into glucose. The glucose is then absorbed into the bloodstream with the support of insulin. This is then distributed between the bodys cells and used as energy.

    Foods high in glucose include most carbohydrates and a handful of proteins and fats. Most foods contain glucose as it is simply a natural sugar that occurs in most dietary forms. However, it is carbohydrates that contain the most sugar and 100% of it turns into glucose, through the process mentioned above, once consumed. The concentration of glucose present in the blood will determine your blood sugar level.

    Here is a quick video explaining Blood sugar levels chart :

    Your blood sugar level can either be low, normal or high. Depending on what you eat and health conditions, it will vary from person to person. Here is a breakdown of how your blood sugar works and how low or high blood sugar levels happens:

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    How Do I Treat Low Blood Glucose

    If you begin to feel one or more symptoms of low blood glucose, check your blood glucose level. If your blood glucose level is below your target or less than 70 mg/dL, follow these steps

  • Eat or drink 15 to 20 grams of glucose or carbohydrates right away. Examples include
  • four glucose tablets or one tube of glucose gel.
  • 1/2 cup of fruit juicenot low-calorie or reduced-sugar juice. If you have kidney disease, dont drink orange juice because it has a lot of potassium. Apple, grape, or cranberry juice are good options.
  • 1/2 can of sodanot low-calorie or reduced-sugar soda.
  • 1 tablespoon of sugar, honey, or corn syrup.
  • Wait 15 minutes and check your blood glucose level again. If your glucose level is still low, eat or drink another 15 to 20 grams of glucose or carbohydrates.
  • Check your blood glucose level again after another 15 minutes. Repeat these steps until your glucose level is back to your target range.
  • If your next meal is more than 1 hour away, have a snack to keep your blood glucose level within a range that is healthy for you. Try crackers or a piece of fruit.
  • Why Your Blood Sugar Level May Be High

    Based on the ADA guidelines above, if your blood sugar is above 180 mg/dL two hours after a meal, it is considered above the normal range. What might cause your glucose or blood sugar to rise? Consider the following factors:

    • Consuming more carbohydrates or a larger meal than usual
    • Not taking enough insulin or oral diabetes medication based on carbohydrates or activity levels
    • Reduced physical activity
    • Side effects from medications like steroids or antipsychotics

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    Low Blood Sugar Levels In Diabetes

    People with diabetes can have low blood sugar levels because of the medicines they have to take to manage their diabetes. They may need a hormone called or diabetes pills to help their bodies use the sugar in their blood.

    These medicines help take the sugar out of the blood and get it into the body’s cells, which makes the blood sugar level go down. But sometimes it’s a tricky balancing act and blood sugar levels can get too low.


    People with diabetes need to keep their blood sugars from getting too highor too low. Keeping blood sugar levels in a healthy range means balancing when and what they eat, and when they exercise with when they take medicines.

    Low Blood Glucose During Sleep

    What causes low blood sugar levels in Diabetic individuals? – Dr. Mahesh DM

    Your blood glucose level can drop while you sleep and stay low for several hours, causing serious problems.7 Symptoms of low blood glucose while you sleep can include

    • crying out or having nightmares
    • sweating enough to make your pajamas or sheets damp
    • feeling tired, irritable, or confused after waking up

    Although you may not wake up or notice any symptoms, low blood glucose can interfere with your sleep, which may affect your quality of life, mood, and ability to work. Having low blood glucose during sleep can also make you less likely to notice and respond to symptoms of low blood glucose during the day.

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    When You Have Low Blood Sugar

    First, eat or drink 15 grams of a fast-acting carbohydrate, such as:


    • Three to four glucose tablets
    • One tube of glucose gel
    • Four to six pieces of hard candy
    • 1/2 cup fruit juice
    • 1 cup skim milk
    • 1/2 cup soft drink
    • 1 tablespoon honey

    Fifteen minutes after you’ve eaten a food with sugar in it, check your blood sugar again. If your blood sugar is still less than 70 mg/dL, eat another serving of one of the foods listed above. Repeat these steps until your sugar becomes normal.

    Low Blood Sugar Chart And Action Plan

    Low blood sugar is also called hypoglycemia. The numbers below represent values in the hypoglycemic range and require action to bring blood sugar levels up into a normal range.

    Alert Level and Treatment Plan
    50 mg/dL or underRed Flag: Blood sugar is critically low and requires immediate treatment.

    If a person is unable to speak and/or is not alert, treat with glucagon via injection or nasal spray. Call emergency medical response if necessary. Do not place food or drink into the mouth.

    If a person is alert and able to speak clearly, treat with 15 grams of rapid-acting carbohydrate such as glucose gel, 4 oz regular soda, or fruit juice. Re-test blood sugar in 15 minutes and repeat as needed to bring blood sugar within range.


    51-70 mg/dLRed Flag: Blood sugar is below normal levels and requires immediate treatment.

    Treat with 15 grams of rapid-acting carbohydrate and re-test in 15 minutes. Repeat treatment as needed to bring blood sugar within range.

    71-90 mg/dLYellow Flag: Blood sugar levels should be watched and treated as needed.

    If youre having symptoms of low blood sugar, treat with 15 grams of rapid-acting carbohydrate and re-test in 15 minutes.

    Repeat treatment or follow with a meal. If it is meal time, move forward with eating the meal. People often fall into this range when they are late for a meal or have been especially active.


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    Checking For Low Blood Sugar Levels

    The warning signs of hypoglycemia are the body’s natural response to low blood sugar levels. When blood sugar levels fall too low, the body releases the hormone adrenaline, which helps get stored glucose into the bloodstream quickly. This can make someone:

    • pale
    • start shaking
    • have an increased heart rate

    If the hypoglycemia isn’t treated, more serious symptoms may happen, such as drowsiness, confusion, seizures, and loss of consciousness.

    The only way to know for sure if you’re having a low blood sugar level is to test. Blood sugar levels can be tested with a . This computerized device measures and displays the amount of glucose in a blood sample. But if you can’t quickly check your blood sugar level, it’s important to treat yourself for hypoglycemia immediately to prevent symptoms from getting worse.

    Sometimes a person with diabetes may have symptoms of low blood sugar levels, but blood sugar levels are not actually low. This is a called a false reaction. The hormone adrenaline is not just released when blood sugar drops too low it’s also released when blood sugar levels fall quickly when they’re too high. If you’re having a false reaction, you might actually have blood sugar levels in a healthy range but feel as if you have low blood sugar. Testing blood sugar levels before treating yourself for hypoglycemia can help you figure out if you’re having a false reaction.


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    How Serious Is Hypoglycemia

    Low Blood Sugar

    Hypoglycemic episodes can range from mild to severe.

    Mild hypoglycemia can usually be treated by the individual and are to be expected to some degree in people on insulin. Mild hypos are not associated with significant long term health problems unless they are occurring very regularly or for long periods of time.

    Severe hypoglycemia, however, will require treatment from someone else and may require an ambulance. Severe hypos can lead to immediate danger if not treated immediately. Whilst rare, severe hypos can potentially lead to coma and death.

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    Low Blood Sugar Level Causes

    Most low blood sugar level causes are preventable and are caused due to a persons lifestyle and diet habits. Low blood sugar is common among diabetic patients who take medications to increase insulin levels.


    All of the above causes are risk factors that may or may not be able to be inhibited. They are important to be aware of and act accordingly to keep yourself from getting a too high or too low blood sugar level.

    If a person has medical, lifestyle or diet habits that cause irregular blood sugar levels, symptoms will begin to develop along with the drop or spike in blood sugar, and are as follows:

    Dont Drive When You Have Low Blood Sugar

    It’s dangerous. If you’re driving and you have hypoglycemia symptoms, pull off the road, check your blood sugar, and eat a sugary food. Wait at least 15 minutes, check your blood sugar, and repeat these steps if needed. Eat a protein and carbohydrate source before you drive on. Be prepared. Keep a sugar source, such as glucose tablets, in your car at all times for emergencies.

    Allina Health: âNon-diabetic Hypoglycemia.”

    Endotext: “Non-Diabetic Hypoglycemia.”


    UW Health: âNutrition Management of Low Blood Sugar without Diabetes .â

    Memorial Sloan Kettering Cancer Center: âHow to Give an Emergency Glucagon Injection to Treat Low Blood Sugar.â

    American Diabetes Association: âHypoglycemia .â

    Joslin Diabetes Center: âDriving with Diabetes,â âHow To Treat A Low Blood Glucose,â âIs Low Blood Glucose Dangerous?â âOral Diabetes Medications Summary Chart,â âPrandin âOral Hypoglycemic Agent.â”

    Journal of the American Medical Association: âFactitious Hypoglycemia Due to Chlorpropamide: Report of a Case, with Clinical Similarity to an Islet Cell Tumor of the Pancreas.â


    AMN Healthcare: âAdvances in Diabetes, Part II: Oral Medications.â

    Physiciansâ Desk Reference: âAllopurinol,â âCoumadin,â âProbenecid.â

    National Institute of Diabetes and Digestive and Kidney Diseases: âLow Blood Glucose .â

    Hormone Health Network: âNon Diabetic Hypoglycemia.â

    University of Iowa Hospitals & Clinics: âHypoglycemia .â

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    What To Do When Your Blood Sugar Levels Drop Too Low

    People who use insulin and other diabetes medications are at risk for hypoglycemia. Keep this action plan handy so youâre prepared.

    If you take insulin or diabetes medication, you may be at risk of developing hypoglycemia, or low blood sugar. Without quick attention, hypoglycemia can lead to serious complications, so its important to know what to do if it happens to you or someone close to you.

    In very severe cases, hypoglycemia can lead to seizures or loss of consciousness, says a clinical assistant professor of medicine, endocrinology, gerontology, and metabolism at Stanford Health Care, and chief of the Stanford Endocrine Clinic.

    Itâs possible to have hypoglycemia but have no symptoms, according to the National Institute of Diabetes and Digestive and Kidney Diseases . On the other hand, symptoms can also come on rapidly. While symptoms vary from person to person, if you develop mild to moderate low blood sugar you may:

    • Feel shaky or jittery
    • Be irritable or combative
    • Have blurred vision or see double

    Some people feel tingling or numbness in their extremities too, says Rodolfo Galindo, MD, an assistant professor of medicine in the division of endocrinology, metabolism, and lipids at the Emory University School of Medicine in Atlanta, and chair of the inpatient diabetes taskforce.

    Thinkstock

    Preventing Low Blood Sugar Levels

    What causes decreased post prandial blood sugar levels & its management? – Dr. Mahesh DM

    Here are some other tips to help you avoid low blood sugar levels:

    • Eat all your meals and snacks on time and try not to skip any.
    • Take the right amount of insulin.
    • If you exercise longer or harder than usual, have an extra snack.
    • Don’t take a hot bath or shower right after an insulin shot.
    • Stick to your diabetes management plan.
    • Check your blood sugar levels regularly, so you can tell if your blood sugars are running too low and your treatment plan needs adjustment.
    • Carry something containing sugar with you at all times and take it right away if you have symptoms. Don’t wait to see if the symptoms will go away they may get worse!

    Alcohol and drugs can cause major problems with your blood sugar levels, so avoiding them is another way to prevent diabetes problems. Drinking can be particularly dangerous even deadly for people with diabetes because it messes up the body’s ability to keep blood glucose in a normal range. This can cause a very rapid drop in blood glucose in people with diabetes. Drug or alcohol use is also dangerous because it may affect someone’s ability to sense low blood sugar levels.

    Learning how to recognize the signs of low blood sugar levels and get them back to normal is an important part of caring for diabetes. Keeping track of your blood sugar levels and recording lows when they occur will help you and your diabetes health care team keep your blood sugar levels in a healthy range.

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    What Are The Treatments For Hypoglycemia

    Make an appointment with an endocrinologist if you feel like youre having episodes of hypoglycemia, even if youre not diabetic. Theyll talk you through treatment strategies, including:

    • Adjusting your medications. You may need to change how often you take insulin or other medications, which medications youre on, how much you take, and when you take them.
    • Working with a registered dietitian on a personalized meal plan that stabilizes blood sugar levels. Theres no one-size-fits-all hypoglycemia diet, but a nutritionist can help you figure out a consistent meal plan tailored to you, and teach you how to count carbohydrate grams to go along with your health and routine.
    • Increasing and improving self-monitoring of your blood glucose levels. Knowing your blood glucose level throughout the daywhen you get up, before meals, and after meals etc.can help you keep it from getting too low.
    • Limiting consumption of alcoholic beverages. Alcohol interferes with the way your body metabolizes glucose. If you’re prone to hypoglycemia, consider decreasing how much alcohol you consume.
    • Glucose tablets . Make sure you always have glucose tablets on hand, whether at home, school, the office, or the gym. After taking the tablet, check your blood sugar. If its still low, take another tablet. If that doesnt help, check with your doctor.

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