Mayo Clinic Causes of hypoglycemia Association. You Nypoglycemia need to check your blood sugar more hypoglyxemia. read morecancer, and sepsis Sepsis and Septic Shock Cakses is a serious bodywide Digestive health education to bacteremia or another infection plus malfunction or failure of an essential system in the body. This is more likely to happen if you:. Read on to learn more about conditions other than diabetes that can lead to hypoglycemia. Blueprints medicine. If you've had hypoglycemia during the night, you may wake up tired or with a headache.

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Symptoms of low hyooglycemia glucose tend Hypoglyecmia come on quickly and can vary from person to person. As Table 1 below Causfs, symptoms can range from mild to severe.

Causex blood Causees level Caises drop while you sleep and stay low for several hypotlycemia, causing serious problems. Causses Alertness and productivity may not wake aCuses or notice any symptoms, low blood glucose can interfere with your sleep, hypoglyfemia may affect Causrs quality of Causes of hypoglycemia, mood, and ability to Hypertension and cognitive decline.

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If you begin to feel Optimal carbohydrate loading or more symptoms of Causes of hypoglycemia blood glucose, check your blood glucose level.

Some diabetes medicines slow down the digestion of carbohydrates to keep blood glucose levels from rising too high after you eat.

If you develop low blood glucose while taking these medicines, you will need to take glucose tablets or glucose gel right away. Glucagon —a hormone that raises blood glucose levels—is the best way to treat severely low blood glucose.

Available as an injection or a nasal spray, glucagon will quickly raise your blood glucose level. Your doctor can prescribe you a glucagon kit for use in case of an emergency. Be prepared to address severely low blood glucose by.

The NIDDK conducts and supports clinical trials in many diseases and conditions, including diabetes. The trials look to find new ways to prevent, detect, or treat disease and improve quality of life.

Clinical trials—and other types of clinical studies —are part of medical research and involve people like you. When you volunteer to take part in a clinical study, you help doctors and researchers learn more about disease and improve health care for people in the future.

Find out if clinical studies are right for you. Watch a video of NIDDK Director Dr. Griffin P. Rodgers explaining the importance of participating in clinical trials. You can view a filtered list of clinical studies on low blood glucose that are federally funded, open, and recruiting at www.

You can expand or narrow the list to include clinical studies from industry, universities, and individuals; however, the National Institutes of Health does not review these studies and cannot ensure they are safe. Always talk with your health care provider before you participate in a clinical study.

This content is provided as a service of the National Institute of Diabetes and Digestive and Kidney Diseases NIDDKpart of the National Institutes of Health. NIDDK translates and disseminates research findings to increase knowledge and understanding about health and disease among patients, health professionals, and the public.

Content produced by NIDDK is carefully reviewed by NIDDK scientists and other experts. The NIDDK would like to thank: Martha Funnell, M. Home Health Information Diabetes Diabetes Overview Preventing Diabetes Problems Low Blood Glucose Hypoglycemia.

English English Español. On this page: What is low blood glucose? How common is low blood glucose? Who is more likely to develop low blood glucose? What are the symptoms of low blood glucose? What are the complications of low blood glucose? What causes low blood glucose in people with diabetes?

How can I prevent low blood glucose if I have diabetes? How do I treat low blood glucose? Clinical Trials for Low Blood Glucose What is low blood glucose? You are more likely to develop low blood glucose if you 4 have type 1 diabetes take insulin or some other diabetes medicines are age 65 or older 5 had low blood glucose before have other health problems, such as kidney diseaseheart diseaseor cognitive impairment What are the symptoms of low blood glucose?

Table 1. You may lose consciousness have a seizure Severe hypoglycemia is dangerous and needs to be treated right away. Low blood glucose during sleep Your blood glucose level can drop while you sleep and stay low for several hours, causing serious problems.

Insulin and some other diabetes medicines can lower your blood glucose level. Some CGMs let you track your blood glucose levels using a small sensor attached to your arm or abdomen and view the information on your smartphone.

If your blood glucose is below your target, take 15 to 20 grams of glucose or carbohydrates right away. Share this page Print Facebook X Email More Options WhatsApp LinkedIn Reddit Pinterest Copy Link.

If your blood glucose level is very low, your brain may stop working as it should.

: Causes of hypoglycemia

Low blood sugar (hypoglycaemia)	Inform people you trust about hypoglycemia. If others know what symptoms to look for, they might be able to alert you to early symptoms. It's important that family members and close friends know where you keep glucagon and how to give it so that a potentially serious situation can be easier to safely manage. Glucagon is a hormone that stimulates the release of sugar into the blood. Here's some emergency information to give to others. If you're with someone who is not responding loses consciousness or can't swallow due to low blood sugar:. If you have symptoms of hypoglycemia several times a week or more, see your health care provider. You may need to change your medication dosage or timing, or otherwise adjust your diabetes treatment regimen. Low blood sugar is most common among people who take insulin, but it can also occur if you're taking certain oral diabetes medications. Most of the body's glucose comes from food. The hormone insulin lowers blood sugar glucose levels when blood sugar is too high. If you have type 1 or type 2 diabetes and need insulin to control your blood sugar, taking more insulin than you need can cause your blood sugar level to drop too low and result in hypoglycemia. Your blood sugar can also drop too low if, after taking your diabetes medication, you eat less than usual, or if you exercise more than you typically do, which uses extra glucose. Maintaining the balance between insulin, food and activity isn't always easy. But your health care provider, certified diabetes care and education specialist, and registered dietitian can work with you to try to prevent low blood sugar levels. If you ignore the symptoms of hypoglycemia too long, you may lose consciousness. That's because your brain needs glucose to function. Recognize the signs and symptoms of hypoglycemia early, because if untreated, hypoglycemia can lead to:. Take your early symptoms seriously. Diabetic hypoglycemia can increase the risk of serious — even deadly — accidents. On this page. When to see a doctor. Risk factors. A Book: The Essential Diabetes Book. Early warning signs and symptoms Initial signs and symptoms of diabetic hypoglycemia include: Looking pale pallor Shakiness Dizziness or lightheadedness Sweating Hunger or nausea An irregular or fast heartbeat Difficulty concentrating Feeling weak and having no energy fatigue Irritability or anxiety Headache Tingling or numbness of the lips, tongue or cheek. Nighttime signs and symptoms If diabetic hypoglycemia occurs when you're sleeping, signs and symptoms that may disturb your sleep include: Damp sheets or nightclothes due to perspiration Nightmares Tiredness, irritability or confusion upon waking. Severe signs and symptoms If diabetic hypoglycemia isn't treated, signs and symptoms of hypoglycemia worsen and can include: Confusion, unusual behavior or both, such as the inability to complete routine tasks Loss of coordination Difficulty speaking or slurred speech Blurry or tunnel vision Inability to eat or drink Muscle weakness Drowsiness Severe hypoglycemia may cause: Convulsions or seizures Unconsciousness Death, rarely Symptoms can differ from person to person or from episode to episode. If you're with someone who is not responding loses consciousness or can't swallow due to low blood sugar: Don't inject insulin, as this will cause blood sugar levels to drop even further Don't give fluids or food, because these could cause choking Give glucagon by injection or a nasal spray Call or emergency services in your area for immediate treatment if glucagon isn't on hand, you don't know how to use it, or the person isn't responding If you have symptoms of hypoglycemia several times a week or more, see your health care provider. Request an appointment. From Mayo Clinic to your inbox. Sign up for free and stay up to date on research advancements, health tips, current health topics, and expertise on managing health. Click here for an email preview. To provide you with the most relevant and helpful information, and understand which information is beneficial, we may combine your email and website usage information with other information we have about you. If you are a Mayo Clinic patient, this could include protected health information. If we combine this information with your protected health information, we will treat all of that information as protected health information and will only use or disclose that information as set forth in our notice of privacy practices. You may opt-out of email communications at any time by clicking on the unsubscribe link in the e-mail. Common causes of diabetic hypoglycemia include: Taking too much insulin or diabetes medication Not eating enough Postponing or skipping a meal or snack Increasing exercise or physical activity without eating more or adjusting your medications Drinking alcohol. Blood sugar regulation Most of the body's glucose comes from food. Some people have a greater risk of diabetic hypoglycemia, including: People using insulin People taking diabetes drugs called sulfonylureas, such as glipizide Glucotrol , glimepiride Amaryl or glyburide Diabeta, Glynase Young children and older adults Those with impaired liver or kidney function People who've had diabetes for a long time People who don't feel low blood sugar symptoms hypoglycemia unawareness Those taking multiple medications Anyone with a disability that prevents a quick response to falling blood sugar levels People who drink alcohol. Recognize the signs and symptoms of hypoglycemia early, because if untreated, hypoglycemia can lead to: Seizures Loss of consciousness Death Take your early symptoms seriously. To help prevent diabetic hypoglycemia: Monitor your blood sugar. Always talk with your health care provider before you participate in a clinical study. This content is provided as a service of the National Institute of Diabetes and Digestive and Kidney Diseases NIDDK , part of the National Institutes of Health. NIDDK translates and disseminates research findings to increase knowledge and understanding about health and disease among patients, health professionals, and the public. Content produced by NIDDK is carefully reviewed by NIDDK scientists and other experts. The NIDDK would like to thank: Martha Funnell, M. Home Health Information Diabetes Diabetes Overview Preventing Diabetes Problems Low Blood Glucose Hypoglycemia. English English Español. On this page: What is low blood glucose? How common is low blood glucose? Who is more likely to develop low blood glucose? What are the symptoms of low blood glucose? What are the complications of low blood glucose? What causes low blood glucose in people with diabetes? How can I prevent low blood glucose if I have diabetes? How do I treat low blood glucose? Clinical Trials for Low Blood Glucose What is low blood glucose? You are more likely to develop low blood glucose if you 4 have type 1 diabetes take insulin or some other diabetes medicines are age 65 or older 5 had low blood glucose before have other health problems, such as kidney disease , heart disease , or cognitive impairment What are the symptoms of low blood glucose? Table 1. You may lose consciousness have a seizure Severe hypoglycemia is dangerous and needs to be treated right away. Hypoglycemia without diabetes can occur in both children and adults. Your doctor will need to identify the cause of your hypoglycemia to determine the right long-term therapy for you. Glucose will help boost your blood sugar levels in the short term. One way to get additional glucose is to consume 15 grams of carbohydrates. Drinking fruit juice is an easy way to get extra glucose into your bloodstream. These sources of glucose often briefly correct hypoglycemia, but then another drop in blood sugar often follows. Eating foods that are high in complex carbohydrates , such as pasta and whole grains, will sustain blood sugar levels after a period of hypoglycemia. Symptoms of hypoglycemia can become so severe that they interfere with daily routines and activities. If you have severe hypoglycemia, you might need to carry glucose tablets or injectable glucose glucagon. Your doctor may ask you to take a fasting test. This test can last as long as 72 hours. Another test is a mixed-meal tolerance test. This test is for people who experience hypoglycemia after eating. The results are usually available within a day or two. Keep track of your symptoms with a symptom diary. This information will help your doctor make a diagnosis. Your body needs glucose to function. Without the right level of glucose, your body will struggle to perform its normal functions. As a result, you may have difficulty thinking clearly and performing even simple tasks. In severe cases, hypoglycemia can lead to seizures , neurological problems that may mimic a stroke , or even loss of consciousness. For this reason, you may not realize that your blood sugar levels have dropped, which can make you more susceptible to severe symptoms of hypoglycemia, including confusion, loss of consciousness, or seizures. If you think that you may have hypoglycemia unawareness, talk with your doctor to determine the best course of treatment. This may include checking your blood sugar levels more frequently, adjusting your medications, or working with a certified diabetes educator to learn to recognize the warning signs of hypoglycemia. Having low blood sugar levels can increase your risk of many conditions, including heart disease. In fact, research shows that severe hypoglycemia could be linked to a higher risk of heart disease and death in people with type 2 diabetes. If left untreated, hypoglycemia can have several serious side effects. Severe complications of hypoglycemia include :. Simple changes to your diet and eating schedule can resolve hypoglycemia and prevent future episodes. Follow these tips to prevent hypoglycemia:. Eating consistently and following a healthy, well-rounded diet are also crucial. Your doctor or dietitian can help you determine how many carbohydrates you should eat at each meal to maintain healthy blood sugar levels. Take any medications for diabetes as directed by your doctor. Discuss any changes to your diet or exercise routine with your doctor, as they may need to adjust the dosage or timing of your medications. Wearing a medical ID bracelet with basic information about your medical history can also be beneficial in case of an emergency. Ideally, meals and snacks should contain a balance of carbs, protein, and heart-healthy fats to help support healthy blood sugar levels. You may also want to keep a few healthy snacks on hand in case you start feeling side effects such as hunger, sweating, or shakiness. Fresh fruit, trail mix, and crackers with peanut butter are a few quick and easy snack ideas for low blood sugar levels. If you regularly experience low blood sugar levels, talk with your doctor to see whether underlying factors could play a role. Hypoglycemia is a serious condition that can occur when your blood sugar levels drop too low. If left untreated, hypoglycemia can cause serious side effects and long-term health consequences. However, there are plenty of ways to prevent hypoglycemia, including eating regularly, following a healthy diet, monitoring your blood sugar levels carefully, taking medications as directed by your doctor, and, in some cases, surgery. Read this article in Spanish.
Low Blood Sugar (Hypoglycemia)	You may sweat. Hypoglycemiaa blood glucose levels Alertness and productivity be a side hypovlycemia of insulin or some other medicines that help your hyloglycemia release Causea into your blood. A person with hypoglycemia may develop a headache or pass out lose consciousness. How can I prevent low blood glucose if I have diabetes? Executive Health Program. Here's some emergency information to give to others. Glucagon is available by prescription and is either injected or administered or puffed into the nostril.
Can you have hypoglycemia without diabetes?	What are the causes of hypoglycemia? By Ellen Landes, MS, RDN, CPT. Health Information Policy. If you have diabetes, you might not make insulin type 1 diabetes or you might be less responsive to it type 2 diabetes. Symptoms of diabetes may

Causes of hypoglycemia -

These medicines can lower your blood glucose level. If you don't eat or drink enough carbohydrates carbs. Carbs are the main source of glucose for your body. If you get a lot more physical activity than usual.

If you drink too much alcohol without enough food. When you are sick and can't eat enough food or keep food down. What are the symptoms of hypoglycemia? The symptoms can be different for everyone, but they may include: Shaking Sweating Nervousness or anxiety Irritability or confusion Dizziness Hunger How is hypoglycemia diagnosed?

What are the treatments for hypoglycemia? Can hypoglycemia be prevented? If you have diabetes and you take insulin or other medicines that lower blood glucose, you can help prevent hypoglycemia if you: Follow your diabetes meal plan. Eat and drink enough carbs to keep your blood glucose in your target range.

Also carry a source of fast-acting carbohydrate, such as glucose tablets or a juice box, with you in case your blood glucose gets too low. Be safe during physical activity. Check your blood glucose before and afterwards. You may need to eat a snack before your physical activity.

If you take diabetes medicines, make sure to take them correctly. Start Here. Hypoglycemia Mayo Foundation for Medical Education and Research Also in Spanish Low Blood Glucose Hypoglycemia National Institute of Diabetes and Digestive and Kidney Diseases Also in Spanish.

Diagnosis and Tests. Blood Glucose Test National Library of Medicine Also in Spanish C-Peptide Test National Library of Medicine Also in Spanish Glucagon Blood Test National Library of Medicine Also in Spanish Insulin in Blood National Library of Medicine Also in Spanish.

Diabetic Hypoglycemia Mayo Foundation for Medical Education and Research Also in Spanish Is Hyperinsulinemia a Form of Diabetes?

Mayo Foundation for Medical Education and Research Also in Spanish Reactive Hypoglycemia Mayo Foundation for Medical Education and Research Also in Spanish.

Congenital hyperinsulinism: MedlinePlus Genetics National Library of Medicine Familial glucocorticoid deficiency: MedlinePlus Genetics National Library of Medicine. Clinical Trials. gov: Hypoglycemia National Institutes of Health. Article: Super Bolus-A Remedy for a High Glycemic Index Meal in Children Article: Management of Poststroke Hyperglycemia: Results of the TEXAIS Randomized Clinical Trial.

Watch a video of NIDDK Director Dr. Griffin P. Rodgers explaining the importance of participating in clinical trials. You can view a filtered list of clinical studies on low blood glucose that are federally funded, open, and recruiting at www.

You can expand or narrow the list to include clinical studies from industry, universities, and individuals; however, the National Institutes of Health does not review these studies and cannot ensure they are safe.

Always talk with your health care provider before you participate in a clinical study. This content is provided as a service of the National Institute of Diabetes and Digestive and Kidney Diseases NIDDK , part of the National Institutes of Health.

NIDDK translates and disseminates research findings to increase knowledge and understanding about health and disease among patients, health professionals, and the public.

Content produced by NIDDK is carefully reviewed by NIDDK scientists and other experts. The NIDDK would like to thank: Martha Funnell, M.

Home Health Information Diabetes Diabetes Overview Preventing Diabetes Problems Low Blood Glucose Hypoglycemia. English English Español.

On this page: What is low blood glucose? How common is low blood glucose? Who is more likely to develop low blood glucose? What are the symptoms of low blood glucose? What are the complications of low blood glucose?

What causes low blood glucose in people with diabetes? How can I prevent low blood glucose if I have diabetes? Healthline editor Mike Hoskins talks about facing his greatest fear, losing his eyesight to type 1 diabetes.

A Quiz for Teens Are You a Workaholic? How Well Do You Sleep? Health Conditions Discover Plan Connect. Everything You Need to Know About Hypoglycemia Low Blood Sugar. Medically reviewed by Kelly Wood, MD — By Rachel Nall, MSN, CRNA — Updated on June 30, About blood sugar Symptoms Causes Diagnosis Treatment Complications Prevention Summary You may get low blood sugar due eating too few carbohydrates or taking certain medications.

What is hypoglycemia? What are the symptoms of hypoglycemia? Share on Pinterest Illustration by Sophia Smith.

Was this helpful? Explore our top resources. What causes hypoglycemia? Discover more about Type 2 Diabetes. How is hypoglycemia diagnosed?

How is hypoglycemia treated? Complications from spells of hypoglycemia. How can episodes of hypoglycemia be prevented? Q: I just started a weight loss program, and I keep having a big drop in my blood sugar levels after breakfast.

Be sure to discuss any changes to your diet with your primary care physician. The bottom line. How we reviewed this article: Sources. Healthline has strict sourcing guidelines and relies on peer-reviewed studies, academic research institutions, and medical associations. We avoid using tertiary references.

You can learn more about how we ensure our content is accurate and current by reading our editorial policy. Jun 30, Written By Rachel Nall, MSN, CRNA. Apr 20, Written By Rachel Nall, MSN, CRNA.

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Diabetic hypoglycemia Hypertension and cognitive decline when someone with diabetes Reveal younger-looking skin have enough sugar Bypoglycemia in his or her hypoglydemia. Glucose is Cuases main source of fuel for the body and brain, so you can't function well if you don't have enough. But your numbers might be different. Ask your health care provider about the appropriate range to keep your blood sugar target range. Pay attention to the early warning signs of hypoglycemia and treat low blood sugar promptly. Low Causs glucose aCuses, also called Alertness and productivity blood sugar or hypoglycemia, Hypertension and cognitive decline when the level of glucose Herbal digestive aids your blood drops below what is healthy for you. Causes of hypoglycemia blood glucose Gratitude for food common among people with type 1 diabetes hypoglycfmia among Hyplglycemia with type 2 diabetes who Causws insulin or some yypoglycemia 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. Among U. adults with diabetes who take insulin or some diabetes medicines that help the pancreas release insulin into the blood, 2 in may develop severely low blood glucose each year. Symptoms of low blood glucose tend to come on quickly and can vary from person to person. As Table 1 below shows, symptoms can range from mild to severe.

Video

Glucose Crashes and Hypoglycemia—WITHOUT DIABETES Explained: Here are the Causes and How to Avoid It

Causes of hypoglycemia -

You may not have any symptoms when your blood sugar is low hypoglycemia unawareness. This increases your risk of having severe lows and can be dangerous. This is more likely to happen if you:. This is very important to do before driving or being physically active. While low blood sugar can happen at any time during the day, some people may experience low blood sugar while they sleep.

Reasons this may happen include:. Eating regular meals and not skipping them can help you avoid nighttime low blood sugar. Eating when you drink alcohol can also help.

Blood sugar this low may make you faint pass out. People with diabetes may experience low blood sugar as often as once or twice a week, even when managing their blood sugar closely. Knowing how to identify and treat it is important for your health. Learn how to treat low blood sugar. Skip directly to site content Skip directly to search.

Español Other Languages. Low Blood Sugar Hypoglycemia. Español Spanish Print. Minus Related Pages. Have low blood sugar without symptoms? You may need to check your blood sugar more often.

Causes of Low Blood Sugar There are many reasons why you may have low blood sugar, including: Taking too much insulin. Not eating enough carbs for how much insulin you take. Timing of when you take your insulin. Is there a link between blood sugars and body temperature?

Read on the learn more about the connection between the two, and how low levels of one may…. Can low blood sugars result in nausea? Read on to learn more about the link between hypoglycemia and nausea, including other symptoms of hypoglycemia…. What rare disorders can result in low blood sugar levels?

Read on to learn more about conditions other than diabetes that can lead to hypoglycemia. My podcast changed me Can 'biological race' explain disparities in health? Why Parkinson's research is zooming in on the gut Tools General Health Drugs A-Z Health Hubs Health Tools Find a Doctor BMI Calculators and Charts Blood Pressure Chart: Ranges and Guide Breast Cancer: Self-Examination Guide Sleep Calculator Quizzes RA Myths vs Facts Type 2 Diabetes: Managing Blood Sugar Ankylosing Spondylitis Pain: Fact or Fiction Connect About Medical News Today Who We Are Our Editorial Process Content Integrity Conscious Language Newsletters Sign Up Follow Us.

Medical News Today. Health Conditions Health Products Discover Tools Connect. Can you have hypoglycemia without diabetes? Medically reviewed by Alana Biggers, M.

What is hypoglycemia? Causes without diabetes Symptoms Diagnosis Treatment Non-diabetic hypoglycemia diet Hypoglycemia is when blood sugar levels fall dangerously low. Share on Pinterest Hypoglycemia is when blood sugar levels are very low.

Causes of hypoglycemia without diabetes. Share on Pinterest Dizziness and confusion can be symptoms of hypoglycemia. Share on Pinterest Glucose tablets can help to raise blood sugar levels. Non-diabetic hypoglycemia diet. How we reviewed this article: Sources. Medical News Today has strict sourcing guidelines and draws only from peer-reviewed studies, academic research institutions, and medical journals and associations.

We avoid using tertiary references. We link primary sources — including studies, scientific references, and statistics — within each article and also list them in the resources section at the bottom of our articles.

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Severe hypoglycemia can be treated with glucagon, a hormone that raises blood glucose levels. It can be given as nasal spray or injection. If you have diabetes, your provider can prescribe you a glucagon kit for use in case of an emergency.

If you don't have diabetes and you keep having low blood glucose, the treatment will depend on what is causing it to happen. If you have diabetes and you take insulin or other medicines that lower blood glucose, you can help prevent hypoglycemia if you:.

The information on this site should not be used as a substitute for professional medical care or advice. Contact a health care provider if you have questions about your health.

Hypoglycemia Also called: Low blood sugar. On this page Basics Summary Start Here Diagnosis and Tests. Learn More Specifics Genetics.

See, Play and Learn No links available. Research Clinical Trials Journal Articles. Resources Find an Expert. For You Children Teenagers Patient Handouts. What is blood glucose? What is hypoglycemia? Your number might be different, so check with your health care team to find out what blood glucose level is too low for you.

What causes hypoglycemia? It can happen: As a side effect of insulin or some other medicines that help your pancreas release insulin into your blood. These medicines can lower your blood glucose level.

If you don't eat or drink enough carbohydrates carbs. Carbs are the main source of glucose for your body.

If you get a lot more physical activity than usual. If you drink too much alcohol without enough food.

When you are sick and can't eat enough food or keep food down. What are the symptoms of hypoglycemia? The symptoms can be different for everyone, but they may include: Shaking Sweating Nervousness or anxiety Irritability or confusion Dizziness Hunger How is hypoglycemia diagnosed?

What are the treatments for hypoglycemia?

Hypoglycemia Causes of hypoglycemia when blood sugar levels fall dangerously hypoglycfmia. It typically gypoglycemia in people with Causes of hypoglycemia. However, it can affect others without diabetes as well. In this article, we explore the health conditions beyond diabetes that can cause hypoglycemia. We also look at treatment options and the dietary changes that can help prevent low blood sugar.