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Learn with Kiki: Why Do We Burp?

Team StoryWeavers|June 08, 2022, 10:35 IST| 8

After a good heavy meal or after you have some lime soda, you let out a big, loud burp! This causes everyone around to shoot a look at you. At that point, you may have been wondering if you could have gone easy on the food.

Burps are certainly funny when they are loud and sometimes embarrassing. Some of you may have also had contests to see who burps the loudest.

But have you ever been curious about why you burp? How does your body produce burps? Read on to find out.

Why do we burp?

When we eat or laugh or talk everyday, we tend to swallow some air. This air enters through our mouth, into the food pipe ( also called the oesophagus – read: ee-so-fay-gus) and then into the stomach. Every time you swallow food, around a tablespoon worth of air also enters our stomach.

Burps are loud!

Now, the stomach can take only a certain quantity of air inside it. If there is excess air, your stomach tends to bloat. To avoid that from happening, your stomach tends to push out the extra air the way it came in.

It comes from the stomach and through the upper part of the food pipe and a small projection called the epiglottis and out of your mouth. 

That’s a new word, right? Now, what is the epiglottis? We’ll show you. 

Go to the mirror. Open your mouth really wide and say “aaaah”. Do you see a small projection near the beginning of the throat? That small piece of flesh is called the epiglottis. It’s mostly closed and helps regulate the air & food that enter the windpipe and food pipe. 

The epiglottis acts like a traffic controller and lets out the excess air from the oesophagus through the mouth.

The muscles in action while you burp are:   the diaphragm ( the muscle under your ribs) and the muscles in the front of the stomach, which are also called abs. Understanding the explanation behind why we burp might make you think of a similar question, ‘why do we fart?’.

Why are burps so loud?

Sometimes, burps are very loud! 

The noise that is made when you burp comes from gas that is trapped in your stomach and the food pipe, when its opening is shut. The air  that is trapped is under pressure to move out. Especially when there is a lot of it. That’s when you feel like burping. 

Your stomach cannot take in the excess air and lets it out as a burp

So when you burp out the extra air, it makes the surface of the upper part of your food pipe vibrate.

The feeling is similar to windows that rattle during a windy night, right?

What do too many burps mean?

Now that you know how burps are caused and why they are sometimes embarrassingly loud, you need to know when you tend to burp too much and the causes.

Before we dive into the causes, let us tell you that we all can burp up to 30 times a day and that’s very normal! Sometimes,  you swallow too much air, it causes more air to go into the stomach through your food pipe to your stomach. This causes you to belch out several burps one after the other. 

There could be many reasons for that.

  • You ate too much, too fast
  • Drank a lot of soda
  • Laughed more than usual
  • Spoke more than usual
  • Breathed rapidly 

However, you must not hold burps in. It might end up making your tummy bulge and hurt you badly. 

What kind of foods cause you to burp more?

Burping has a lot to do with the food that you eat. In case you have already noticed, if you have a lot of sugar, soda or even vegetables like cabbage, cauliflower or even broccoli, you tend to burp more . While it’s not entirely in your control, it would do you a lot of good to keep these foods under control if you want to prevent burping too much. 

  • Beans
  • Dairy
  • Soda
  • Cabbage, sprouts etc
  • Sugar-based food like candy, gum etc
  • Spicy food

To revise what all you have learnt about burps and burping, here is a song that you can sing.  

 I burped, excuse me!

I burped, excuse me!

It’s my dinner, not me!

It’s my dinner, not me.

Sodas and French Fries

They caught me by surprise!

Holding it in, is in vain.

And my stomach would be in pain. 

So I burped, excuse me. 

I burped, excuse me. 

Did you enjoy learning the new song? What else would you like to know about how the human body works? Tell us  in the comments below. 

Liked this blog? Read these posts too

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Why do we get a fever?

Interesting facts about sleep


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About the Author

Aparna is a mom, singer and dreamer. At BYJU'S, she writes stories about learning for children. She believes in the power of music, especially ghazal, the magic of the universe and happy learners. When not writing or singing, you will find her intensely engaged in conversations about life and the power of words.

Leave a Comment



May Rose Aba

March 21, 2022

thank you for this fact

Trupti Mohapatra

December 28, 2021

Perfectly explained!! As well the new song about burning.


December 25, 2021

Great learning

B S Parinitha

December 19, 2021

It’s nice & healthy tips thank you.

Anusuya P

December 16, 2021

It’s a good piece to introduce science for children. We want to know about other body functions too.

Chella Srinivasan

December 15, 2021

Want to know about hiccups

Nivedhitha B

December 15, 2021

It’s a fun piece about burping

Ragini Gurung

December 15, 2021

We would like to know about heart and its role for the body, thankyou


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