Why do I get hot after I eat

Why do I get hot after I eat?

You are not alone if you have ever experienced hot flashes after you eat or drink. Many people may experience this yet not fully comprehend it, especially when it comes to the source. Hot flashes are characterized by an abrupt feeling of heat, flushing, and perspiration.

However, the symptoms do differ from person to person. Trembling, disorientation, and general weakness are further symptoms.

Here, we examine the possible causes and solutions for hot flashes that come on (feeling hot) after you eat.

Why do I get hot after I eat?

There are many reasons why you get hot after you eat. Some of these include spicy foods, menopause, sugary foods, and so on. Let’s take a deeper look at the common causes.

Spicy foods

Hot flashes can also be triggered by a particular food or drink or even a substantial meal. For instance, it’s common to get hot flashes after eating spicy cuisine. Spicy meals often cause sweating in most individuals, but they can also cause hot flash-like sensations.

Your body will feel warmer as a result of the dilation of blood vessels and stimulation of nerve endings brought on by hot foods.

For instance, peppers have a substance (capsaicin) that gives them their kick. Through the TRPV1 receptor (ie: a structure in the body), our bodies are able to detect the presence of this substance that causes heat.

Thermal hyperalgesia (a condition in which you perceive things as really hot or cold that are truly only warm or cool) can occur when TRPV1 is sensitized and detects the presence of capsaicin in the environment. Your body temperature is also raised by capsaicin, and this reaction might have a purpose.

Sugary foods

It’s likely that your body is producing too much insulin in response to what you ate if sugar is making you sweat. Reactive hypoglycemia, or low blood glucose as a response to a meal rather than being caused by diabetes, is the condition that results from this, which causes your blood sugar to skyrocket. One common adverse effect is sweating.

Even if you perspire after eating anything high in sugar, it doesn’t necessarily mean that sugar is a trigger for you; rather, it may just mean that you need to intentionally balance your meals to slow digestion.

It should be emphasized that not everyone will experience post-meal perspiration if they eat sugary meals generally.

Frey syndrome

Sweating after eating may occasionally be caused by your nerves rather than the meal. A medical ailment called hyperhidrosis is characterized by excessive perspiration. There are numerous types of hyperhidrosis. Gustatory hyperhidrosis is one type that happens after eating. Frey’s syndrome, a form of secondary hyperhidrosis that has to do with the nerves in and around the mouth, is another name for gushy sweating.

Frey syndrome is a rare condition that frequently results from surgery near the parotid glands. The biggest salivary glands in the body, the parotid glands, are situated on either side of the face, immediately below the ear.

Unwanted perspiration and flushing that develops on the cheek, temple, or behind the ears after eating particular foods, especially those that cause a strong salivary reaction, are the main symptoms of Frey syndrome.

The symptoms are frequently manageable and moderate. Some people may experience more severe symptoms, in which case therapy may be required. Uncertainty surrounds the precise etiology of Frey syndrome. It frequently happens after surgery in the region of the face close to the parotid glands.

Low Blood Sugar Levels

The body may experience heat when blood sugar levels fall too low. Adults in good health typically experience heat only when their blood sugar levels fall below 60 mg/dl.

Other foods

The reasons for hot flashes can vary from person to person, but generally speaking, some people have experienced more hot flashes after eating certain food items like; alcoholic beverages and coffee, consuming fatty and sweet foods, grainy foods, and dairy products without homogenization.


Even when no items that would normally cause the condition are consumed, some persons may get hot or have excessive sweating after eating. There are twice as many diabetics who experience this as non-diabetics, making it a well-known side effect of diabetes mellitus. Researchers are now unaware of the precise pathophysiology that leads to the illness in diabetics.


Hot flashes after eating can also be a sign of menopause. When a woman enters menopause, hot flashes frequently occur and are typically brought on by a hormonal imbalance. In fact, research indicates that hot flashes affect three out of every four menopausal women.

While some people experience hot flashes associated with menopause after eating, others experience them as a result of endocrine abnormalities. Diabetes is the ailment that is related to it the most frequently.


What is causing the hot flashes will determine how best to treat them. It frequently involves controlling blood sugar levels. Diet, exercise, quitting cigarettes, and wearing loose cotton clothing are all common lifestyle changes that are recommended.

Making sure you eat a balanced diet that includes important vitamins and nutrients is among the best things you can do. Avoiding processed foods and symptoms-causing foods like hot and fatty foods will significantly reduce symptoms. Many people also discover that getting enough water keeps their bodies cool. According to studies, a regular exercise regimen can help people with body temperature problems.

There are treatments and dietary additions that can lessen hot flashes. For instance, hormone replacement treatment is a possible choice, although it is debatable and should be discussed with a doctor.

You should consult your healthcare practitioner if reactive hypoglycemia (low blood sugar) is the cause. A medical problem that needs further testing could be the cause of the extra insulin.

After using gabapentin and pregabalin, some women have seen a reduction in their symptoms. These drugs are intended to treat pain that is nerve-mediated. Aside from that, every medicine needs to be carefully considered. Antidepressants have also been used to reduce hot flashes. A possible choice for those who want to stay away from medicines is acupuncture.

However, you have to understand that treatment for such cases are usually patient specific, so talk to your doctor to ascertain which of the treatment options will be great for you.


After eating or drinking, hot flashes can be at best inconvenient and at worst extremely unpleasant. Some people get very uncomfortable heat flashes that cause headaches and lightheadedness.

If you get hot after you eat, then you may want to consider some lifestyle changes like modifying your diet, exercising regularly, quitting cigarette smoking, and wearing loose cotton clothing.

You should consult a doctor in such circumstances to rule out any underlying medical conditions. Most of the time, there is little cause for alarm, and people learn that making minor lifestyle changes can be quite beneficial in reducing hot flash-related sweating and heat sensations.


Michael Sarfo
Content Creator at Wapomu

Michael Sarfo is a graduate of the University of Ghana, Legon. He is a content creator for enochkabange.com and a writer for Wapomu

Dr. Ehoneah Obed is a registered pharmacist and a member of the Pharmaceutical Society of Ghana. He has a Doctor of Pharmacy degree from Kwame Nkrumah University of Science and Technology and has experience working in a Tertiary hospital as well as various community pharmacies. He is also a software engineer interested in healthcare technologies.

His love for helping others motivates him to create content on an array of topics mostly relating to the health of people and also software engineering content.

He is knowledgeable in digital marketing, content marketing, and a host of other skills that make him versatile enough to uplift any team he joins.

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