Why do I sweat when I eat?

In this brief article, we will answer the query “why do I sweat when I eat?” We will also discuss why diabetics sweat more when eating and how to reduce sweating when eating.

Why do I sweat when I eat?

Spicy Foods

One reason you might sweat is that you’re eating spicy food. Capsaicin chemical is released by the body when one eats foods that are spicy. This chemical binds to a protein called TRPV1, which is found in your skin and senses high temperatures.

When capsaicin binds to TRPV1, it causes your body to think that it is too hot. In order to cool itself down, your body will start to sweat.

Eating a Big meal

Another reason is that you’re eating a lot of food. When you eat a big meal. The body works harder for the food to be digested hence you sweat. Blood flow to the digestive system increases, and this can cause you to feel warm.

Your body also releases a hormone called cholecystokinin when you eat, and this can stimulate your sweat glands. So, if you tend to sweat a lot when you eat, it may be because you’re especially sensitive to cholecystokinin.

Nervousness and anxiety

Nervousness makes you sweat when eating because your body is trying to cool itself down. Adrenaline hormone is released by the body when you feel nervous causing the vessels to widen and the heart begins to beat fast. 

Adrenaline makes your heart beat faster and your blood vessels open wider. This increases blood flow and body temperature, which makes you sweat.

When you’re nervous, your body is preparing itself for action like fighting or running from danger. But of course, most of the time, you’re not actually in danger. So your body just ends up sweating more than it needs to.

Frey Syndrome

Frey syndrome is a condition in which the nerves that control sweating become damaged, causing the affected person to sweat excessively when they eat. 

This can be a very embarrassing and uncomfortable condition to live with, as sweating can occur even when the person is not in a hot environment or engaging in strenuous activity. Despite the fact that Frey Syndrome has no cure, some medications are used to reduce sweating.

Sugary foods

Sugary foods can make you sweat when eating them because of the release of adrenaline.  This release of adrenaline causes your heart to beat faster, your blood pressure to rise, and your body to sweat.

Sugary foods can increase the body temperature causing you to sweat. Sugar foods require more energy for digestion, therefore, leading to increased body temperature. 

Sugary foods can also make you sweat because they can cause dehydration. When you eat sugary foods, your body loses water in the form of sweat.

How can you reduce sweating when eating?

There are a few things you can do to reduce sweating when eating. First, try to eat in cooler environments, such as an air-conditioned room or outdoors in the shade. 

Avoid spicy foods, as they can trigger sweating. Third, eat smaller meals more frequently throughout the day, instead of large meals, as this will help to regulate your body temperature. 

Avoid wearing tight, constricting clothing. Wear loose, breathable clothing to allow your skin to breathe and help regulate your body temperature.

Moreover, Eat slowly and savor each bite. This will help you to relax and avoid rushing, which can lead to sweating. In order to stay hydrated throughout the day, carry a water bottle and drink plenty of water.

Why do diabetics sweat more when they eat?

A Diabetic can sweat while eating because of various reasons. One reason is that when blood sugar levels rise, the body releases a hormone called epinephrine.

When Epinephrine is released, the liver is activated to release glucose which causes an increase in blood sugar and heart rate. The body, therefore, controls the levels of blood sugar causing sweating.

In case you sweat a lot and you suspect it is not a normal kind of sweating, please visit the hospital for a consultation to see if it is the change in sugar levels that causes the profuse sweating.

For more details on foods that regulate body temperature. Click here


In this brief article, we have answered the question “why do I sweat when I eat?” Moreover, we have discussed how to prevent sweating when eating and explain why diabetics sweat.

Hope you find this blog useful, in case of any questions please let us know




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