Dizziness after eating (2023)

There are many reasons why you may feel dizzy after eating. One secdizzinessit usually occurs when you haven't eaten for too long. thingLow blood sugar,low blood pressure, and for surediabetes medicationssometimes it can make you feel dizzy after eating.

Identifying the cause of dizziness after eating can help you and your doctor find ways to minimize or prevent future episodes altogether.

This article discusses the causes of dizziness after eating, including how to treat and prevent them.

Dizziness after eating (1)

Why do I get dizzy after eating?

Several conditions can lead to dizziness after eating. In some people, dizziness can be caused by a sharp drop in blood pressure caused by standing up too quickly after sitting down, a condition known asorthostatic hypotension.

Some diet-related causes include a drop in blood sugar or blood pressure after meals, the effects of certain diabetes medications, and certain allergies or food intolerances.

Low blood sugar

non-diabetic hypoglycemiathis is a rare condition where blood sugar levels drop in people who don't have itdiabetes.

Normally, blood sugar levels rise after a meal. However, when a person has low blood sugar two to five hours after eating, it is calledreactive hypoglycemia. This is a form of hypoglycemia unrelated to diabetes that can make you feel dizzy after eating carbohydrate-rich foods.

Symptoms of reactive hypotension include:

(Video) Why Do We Get Dizzy After Eating a Big Meal? | SHE-ensya Why Series

  • Dizziness or dizziness.
  • Headache
  • shake or shake
  • Anxiety or tension
  • suddenly sister
  • Sudden fatigue and weakness
  • Fast or irregular heartbeat
  • Hungry

people frompre-diabetesmore prone to reactive hypoglycemia. This is because they have difficulty producing the right quantities.insulinthat help regulate blood sugar levels.

Bariatric surgery (weight loss)it can also lead to low blood sugar as it causes metabolic changes that lead to overproduction of insulin after meals.

diabetes medications

If a person does not eat enough carbohydrates after taking insulin or other diabetes medications, it can lead to low blood sugar and dizziness. Time can sometimes be misleading as some foods are absorbed faster than others (for example, drinks are absorbed faster than solid foods).

Symptoms of low blood sugar include:

  • Dizziness
  • high heart rate
  • Huge or Huge
  • suddenly sister
  • tension or fear
  • Irritability or confusion
  • Hungry

Injecting too much insulin (or injecting it directly into a muscle) can also lead to hypoglycemia and dizziness after eating.

low blood pressure

Low blood pressure after eatingpostprandial hypotensionis a disease that affects up to one-third of the elderly.

Postprandial hypotension occurs when a person's intestines and stomach need extra blood for digestion, resulting in decreased blood flow to other parts of the body, including the brain.

This is a condition that usually results from age-related changes that interfere with the body's ability to respond quickly to sudden changes in blood pressure. big culprithypertension(high blood pressure), which stiffens the arteries and makes it difficult for them to contract and relax when they need to.

Symptoms of postprandial hypotension can come on suddenly and cause:

  • Dizziness or dizziness
  • sudden weakness
  • Sudden blackout or tunnel-like vision
  • Hearing changes
  • Confusion
  • to faint

food alergy

When a person withfood alergywhen coming into contact with a trigger food, they may experience dizziness and other symptoms within minutes to two hours of eating.


Symptoms of a food allergy may include:

  • Tingling or itching in the mouth
  • Stuffed nose
  • Skin rash or hives
  • Swelling of the lips, face, tongue or throat
  • Wheezing and difficulty breathing
  • Stomachache
  • Diarrhea
  • nausea or vomiting
  • Dizziness or dizziness
  • to faint

When to call 911

When a food allergy causes dizziness along with a rash or hives, fast or irregular heartbeat, wheezing, shortness of breath, and swelling of the face, lips, tongue, or throat, call 911 immediately. These are signs of a potentially life-threatening whole-body allergy, also known as as an allergic reaction.anaphylaxis.

energy triggers

Certain foods can cause certain medical conditions in humans and make people feel dizzy after eating. For example, people fromMeniere's diseaseshould avoid salty foods, as salt can increase pressure in the inner ear, which can worsen vertigo.

In particular, alcoholic beverages can be a trigger. This is because alcohol in the blood can affect the inner ear, making the person feel as if the room is spinning.

food intolerancesit can also make you feel dizzy after eating. For example, limited links to evidenceLactose intoleranceto dizziness and drunkenness.

Also, a person who is sensitive to caffeine may feel dizzy after drinking caffeinated beverages.

Certain foods or food ingredients can triggermigrainewhich may cause dizziness. The most common reported food triggers are:

  • Red wine
  • aspartame
  • Chocolate
  • Dairy products, including cheese
  • Soya and derivatives
  • Processed meat rich in nitrites

How to treat dizziness after eating

Treating dizziness after eating involves addressing the underlying cause.

If a person is dizzy due to low blood sugar, the immediate treatment is to eat or drink 15 to 20 grams of carbohydrates. This is equivalent to 1/2 cup of fruit juice or six or seven hard candies.

(Video) Why People Feel Dizzy After Eating - Best Vertigo Treatment At Home

If the cause is an allergy,antihistaminessuch as Claritin (loratadine) or Zyrtec (cetirizine) can counteract the action of histamine, which causes allergy symptoms. Some antihistamines, such as Dramamine (dimenhydrinate), Benadryl (diphenhydramine), and Antivert (meclizine), are used specifically to treat dizziness (a spinning sensation) and nausea.

There is no definitive treatment for postprandial hypotension. However, you can reduce symptoms by lying down until the dizziness stops.

When to consult a healthcare professional

Minor episodes of vertigo usually go away on their own and do not require a trip to the emergency room. However, call 911 if any of the following symptoms accompany your dizziness after eating:

  • Pain in the chest
  • slurred pronunciation
  • Weakness
  • to faint
  • severe headache

If you continue to feel dizzy without having life-threatening symptoms after eating, make an appointment with your doctor. This may be a sign of another treatable underlying condition.

How to diagnose the cause of vertigo

To determine the cause of dizziness after eating, your doctor will start by reviewing your symptoms, medical history, and family history (such as a history of diabetes).

If you feel dizzy only after eating, your doctor may recommend that you measure your blood sugar and blood pressure before and after meals to check for fluctuations that may explain your symptoms. Other tests may be used if a food allergy or food intolerance is suspected.

Tests may include:

  • Mixed Meal Tolerance Test (MMTT): For this test, you will be given a syrup drink to raise your blood sugar and make your body produce more insulin. Your doctor will check your blood sugar several times over the next five hours to see if your blood sugar is dropping.
  • Ambulatory blood pressure monitoring (ABPM) 24 hours: involves attaching a device to the body that takes dozens of blood pressure readings over a continuous period of time, including while eating.
  • allergy skin test: A small amount of common is introduced in this testfood allergensUnder the skin. If you are allergic, a red bump will appear after about 15 minutes.
  • blood test for allergies: This test measures the level of a certain type of antibody calledimmunoglobulin E (IgE)that is specific to a particular food or a protein in a particular food.
  • elimination dietThis can help identify food intolerances or sensitivities by eliminating certain foods from your diet for a period of time and reintroducing them one at a time to see if symptoms return.

Other tests can be used to detect specific food intolerances.


There are several techniques a person can try to reduce or prevent dizziness after eating. This includes:

  • Drink plenty of water before and during meals
  • Limit or avoid caffeine, alcohol or sodium
  • Eat small meals every three hours
  • Meals should consist of adequate portions of high-quality proteins, fats and carbohydrates
  • If you have diabetes, carefully monitor your blood sugar after meals.
  • Avoid refined carbohydrates such as white bread, rice and sugary drinks
  • Control your blood pressure and blood sugar as directed by your doctor.
  • Work closely with your doctor to adjust your blood pressure or diabetes medications


Dizziness after eating is usually related to an underlying medical condition, such as high blood pressure or pre-diabetes. It can also be caused by food sensitivities, stomach surgery, or enzyme deficiencies. If you often feel dizzy after eating, it is important to let your doctor know. They can run tests and find out the cause.

(Video) This is Why You Feel Weird or Light Headed When It’s Time to Eat

common questions

  • Can dizziness after eating indicate diabetes?

    A person who has pre-diabetes or is at risk of diabetes may feel dizzy after eating because their body is not producing enough insulin, causing their blood sugar to drop.

  • What Causes Dizziness After Eating During Pregnancy?

    Getting up quickly after sitting for a long time can lower your blood pressure and make you feel dizzy. Pregnant women who feel dizzy after eating usually recover after giving birth.


Dizziness after eating? ›

Do you sometimes feel dizzy or lightheaded after eating a meal? If so, you could have a common condition called postprandial hypotension (the term loosely translates to low blood pressure after eating) that affects up to one-third of older men and women.

Why do I get dizzy after I eat? ›

Why am I dizzy after eating? Eating usually cases glucose levels to rise, but, in some people, blood sugar levels fall again soon after. This can cause dizziness. Other possible causes of dizziness after eating include standing up, heat exposure, and drinking alcohol.

Can diabetes cause dizziness? ›

People with diabetes may experience dizziness, either as a symptom of the condition or as a result of dehydration or certain medications. A doctor can help determine the cause and how to manage or treat it. Diabetes can cause low or high blood sugar, which can make people feel dizzy or lightheaded.

How do you deal with postprandial hypotension? ›

Treatment of Postprandial Hypotension

Taking a smaller dose of the antihypertensive drugs and eating small, low-carbohydrate meals more frequently may help reduce the effects of this disorder. For some people, walking after a meal helps improve blood flow, but blood pressure may fall when they stop walking.

What are the symptoms of postprandial hypotension? ›

The main symptoms of postprandial hypotension are dizziness, lightheadedness, or fainting after a meal. Syncope is the term used to describe fainting that occurs as a result of falling blood pressure. Usually this condition is caused by a drop in your systolic blood pressure after eating.

Why do I feel weird after I eat? ›

Reactive hypoglycemia

This drop in blood sugar, which typically follows an increase in insulin production, can make you feel anxious, irritable, and even a little confused. You might also notice other physical changes that resemble anxiety symptoms, like: dizziness. shakiness.

Why do I feel weak and shaky even after eating? ›

Hypoglycemia is the medical term for low blood sugar. Reactive hypoglycemia, sometimes called postprandial hypoglycemia, happens when blood sugar drops after a meal — usually within four hours after eating. Symptoms of hypoglycemia may include: Shakiness.

When should I worry about dizziness after eating? ›

Feeling dizzy after eating is often related to an underlying condition such as high blood pressure or prediabetes. It can also be caused by food sensitivities, stomach surgeries, or enzyme deficiencies. If you frequently feel dizzy after eating meals, it's important to let your healthcare provider know.

What are 10 warning signs of diabetes? ›

Here are 10 subtle signs of diabetes:
  • Frequent urination. Most people urinate four to seven times in a day. ...
  • Excessive thirst. ...
  • Extreme hunger. ...
  • Weakness/fatigue. ...
  • Pins and needles. ...
  • Blurry vision. ...
  • Itchy skin. ...
  • Slow healing wounds and increased skin infections.
Apr 7, 2021

What is diabetic dizziness like? ›

In people with diabetes, dizziness is one of the symptoms that can happen due to high blood glucose levels. The level of dizziness can vary, from mild lightheadedness to feeling like the ground beneath you is tilting. Some describe the experience as if their head is spinning, even though they're standing still.

How do you know if dizziness is serious? ›

If you are dizzy right now and have any of the following neurological symptoms along with your dizziness or vertigo, call 911 immediately: New confusion or trouble speaking or understanding speech. New slurred speech or hoarseness of voice. New numbness or weakness of the face, arm, or leg.

What are the 10 signs of low blood pressure? ›

  • Blurry vision.
  • Confusion.
  • Dizziness.
  • Fainting (syncope)
  • Lightheadedness.
  • Nausea or vomiting.
  • Sleepiness.
  • Weakness.

Can blood pressure drop after eating? ›

Postprandial hypotension.

This drop in blood pressure occurs 1 to 2 hours after eating. It's most likely to affect older adults, especially those with high blood pressure or autonomic nervous system diseases such as Parkinson's disease.

What foods should I avoid with postprandial hypotension? ›

Drinking 12 to 18 ounces of water 15 minutes before eating can offset some of the postprandial response. Avoid high-carbohydrate foods or those that include bread, pasta, and potatoes. (Be sure to do your research as you do your meal planning.

Does drinking water help postprandial hypotension? ›

Water drinking elicits a rapid pressor response in patients with autonomic failure and can be used to treat orthostatic and postprandial hypotension. Water drinking moderately reduces orthostatic tachycardia in patients with idiopathic orthostatic intolerance.

What foods cause postprandial hypoglycemia? ›

Limit simple sugars such as candy, honey, jams, jellies, molasses, sugar, syrup, sweetened drinks, large amounts of fruit juice, and sweet desserts. Large amounts can make hypoglycemia symptoms worse, especially if eaten on an empty stomach. Keep amounts moderate and eat them with other foods.

Can food cause vertigo? ›

Foods that are rich in amino acid tyramine include red wine, smoked meats, chicken liver, chocolate, yogurt, citrus fruits, bananas, figs, nuts and ripened cheeses. All these foods can trigger vertigo. Tyramine results in blood vessel dilatation that triggers migraine, which can lead to vertigo.

Can I be hypoglycemic without being diabetic? ›

Non-diabetic hypoglycemia, a rare condition, is low blood glucose in people who do not have diabetes. Clinicians usually want to confirm non-diabetic hypoglycemia by verifying classic symptoms along with a low sugar level AND that these symptoms recover after eating sugar.

Do diabetics get shaky after eating? ›

Reactive hypoglycemia is a drop in blood glucose (sugar) that occurs after eating. Symptoms usually develop within four hours of consuming food and may include shakiness, dizziness, nausea, rapid heartbeat, and sweating.

What does diabetes fatigue feel like? ›

Many people with diabetes will describe themselves as feeling tired, lethargic or fatigued at times. It could be a result of stress, hard work or a lack of a decent night's sleep but it could also be related to having too high or too low blood glucose levels.

Can thyroid problems cause dizziness? ›

Is dizziness a symptom of a thyroid problem? Yes, dizziness is a symptom of a thyroid problem. Thyroid diseases³ or thyroid abnormalities sometimes manifest as dizziness. A high heart rate, shortness of breath, and lightheadedness are all possible symptoms of hyperthyroidism.

Is feeling dizzy after eating acid reflux? ›

Dizziness and GERD

When acid refluxes into the upper GI system, it can affect the tubes that lead to the inner ear. When these tubes become irritated, swelling can occur, causing a loss of balance. This symptom is thought to be more common with GERD that occurs when lying down after a meal.

What should I drink when feeling dizzy? ›

If you feel lightheaded and/or woozy, Dr. Grossman recommends having a drink of water or orange juice and lying down. If symptoms last more than 15 minutes, he says it's time to seek medical help in an urgent or emergency care setting.

Am I diabetic and don't know it? ›

People with type 2 diabetes often have no symptoms at first. They may not have symptoms for many years. According to Medlineplus.gov, early symptoms of diabetes caused by a high blood sugar level may include: Bladder, kidney, skin, or other infections that are more frequent or heal slowly.

What are the red flags of diabetes? ›

Diabetes symptoms

Thirsty - being really thirsty. Tired - feeling more tired than usual. Thinner - losing weight without trying to. Genital itching or thrush.

What does early diabetes feel like? ›

Blurry vision, increased urination, feeling hungry, extreme thirst, and finding that you have itchy, dry skin are all warning signs that you could be in the early stages of type 2 diabetes. Some other signs may be harder to pin down.

Can prediabetes feel dizzy? ›

Signs that prediabetes has progressed to type 2 diabetes include: increased or unrelenting thirst. fatigue or feeling weak. feeling faint or dizzy.

What happens when a pre diabetic feels dizzy? ›

Dizziness is one symptom that diabetics may experience. This can be due to low blood sugar, high blood sugar, low blood pressure, retinopathy, vestibular disorder, medication side effects, or dehydration.

How do I know I am pre diabetic? ›

  • Increased thirst.
  • Frequent urination.
  • Increased hunger.
  • Fatigue.
  • Blurred vision.
  • Numbness or tingling in the feet or hands.
  • Frequent infections.
  • Slow-healing sores.
Nov 19, 2022

What are the red flags for dizziness? ›

“Red flag” symptoms should alert you to a non-vestibular cause: persistent, worsening vertigo or dysequilibrium; atypical “non-peripheral” vertigo, such as vertical movement; severe headache, especially early in the morning; diplopia; cranial nerve palsies; dysarthria, ataxia, or other cerebellar signs; and ...

What are the top 3 causes of dizziness? ›

Dizziness has many possible causes, including inner ear disturbance, motion sickness and medication effects. Sometimes it's caused by an underlying health condition, such as poor circulation, infection or injury.

Why do I feel lightheaded everyday? ›

Some of the main causes are: dehydration(not having enough fluids in your body) a drop in blood pressure when you stand up quickly. feelings of anxiety or panic.

How do you feel when blood pressure is very low? ›

If your blood pressure drops too low, your body's vital organs do not get enough oxygen and nutrients. When this happens, low blood pressure can lead to shock, which requires immediate medical attention. Signs of shock include cold and sweaty skin, rapid breathing, a blue skin tone, or a weak and rapid pulse.

Can high blood pressure cause dizziness? ›

High blood pressure and dizziness are often associated because a person with uncontrolled hypertension may present with dizziness; indeed, dizziness may be the only symptom of hypertension.

What is Stage 1 hypertension? ›

Stage 1 hypertension: A reading ranging from 130 to 139 (systolic) or 80 to 89 (diastolic) Stage 2 hypertension: A reading ranging from 140 or higher (systolic) or 90 (diastolic) Hypertensive crisis (consult your doctor immediately): A reading higher than 180 (systolic) and/or 120 (diastolic)

Can digestive issues cause dizziness? ›

Vomiting and diarrhea can cause dehydration, which leads to dizziness and lightheadedness. Eating contaminated food may also lead to food poisoning, which causes very similar symptoms.

What foods can trigger vertigo? ›

Foods that are rich in amino acid tyramine include red wine, smoked meats, chicken liver, chocolate, yogurt, citrus fruits, bananas, figs, nuts and ripened cheeses. All these foods can trigger vertigo. Tyramine results in blood vessel dilatation that triggers migraine, which can lead to vertigo.

How do you treat gastric dizziness? ›

  1. Avoid skipping meals. If you don't feel like eating, reduce your food intake and eat at certain intervals (i.e. 3 square meals broken down to 5 or 6 as the body is able to digest). ...
  2. Don't overeat. ...
  3. Exercise regularly. ...
  4. Increase your daily water intake. ...
  5. Limit stress. ...
  6. Get proper sleep.
Jun 20, 2019

Can IBS cause dizziness after eating? ›

As well as more common GI symptoms, IBS is also thought to give rise to a number of non-GI symptoms including dizziness. Dizziness can be described as a feeling of unsteadiness, light-headedness or feeling faint.

Is dizziness a symptom of gastroparesis? ›

Effects of Gastroparesis

Chronically delayed stomach emptying creates dramatic shifts in blood sugar levels and can cause dizziness, fatigue and nausea. Repeated vomiting due to gastroparesis can cause dehydration, esophageal damage and tooth decay.

What vitamins are good for dizziness and lightheadedness? ›

Studies have found that vitamins can be useful in treating dizziness. For example, Vitamin C can reduce vertigo while Vitamin D can be helpful when it comes to circulation issues. If you are suffering dizziness as a result of anaemia taking iron supplements can help to correct this.

Does banana help with dizziness? ›

Banana: Being high in carbohydrates and having a high glycemic index, bananas will help in recovering from a dizzy state quickly as it is a good combination of potassium as well as sugar.

How do I know if my dizziness is heart related? ›

In most cases, dizziness associated with heart problems is accompanied by other symptoms. These may include shortness of breath, swollen extremities, frequent fatigue or chest pain. In the event heart disease is suspected, you will undergo one or more tests to get to the root of your problem.

When should I go to the ER for dizziness? ›

Get emergency medical care if you experience new, severe dizziness or vertigo along with any of the following: Sudden, severe headache. Chest pain. Difficulty breathing.


1. Dizziness after eating (Part 2)
2. 12 Causes of Dizziness
(Fauquier ENT)
3. Hypoglycemia (Low Blood Sugar) – Don’t Make This Common Mistake – Dr.Berg
(Dr. Eric Berg DC)
4. Foods & Diet to Help With Your Vertigo | Vertigo and Dizziness Relief
(Align Wellness Center)
5. Dizziness after eating
6. What should I do if I feel dizzy?
(Mount Sinai Health System)


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