Can Watermelon Give You Gas? The Truth Revealed!

Watermelon is a summer fruit that is loved by many. It has a high water content and is rich in vitamins and minerals, making it a healthy snack option. However, there are some concerns about whether watermelon can give you gas.

In this article, we will explore the truth behind whether watermelon can cause gas and the reasons behind it. We will also provide some tips on how to prevent gas and bloating after consuming watermelon.

What Causes Gas?

Gas is a natural byproduct of digestion. When we eat food, it goes through our gastrointestinal tract, where it is broken down by digestive enzymes, stomach acid, and gut bacteria. During this process, gas is produced, which is either released through the mouth as a burp or through the rectum as flatulence.

Some foods are known to cause more gas than others. For example, foods that are high in fiber, such as beans and cruciferous vegetables, can be difficult to digest and can cause gas. Similarly, carbonated beverages and sugar alcohols can also cause gas and bloating.

Can Watermelon Cause Gas?

Watermelon contains a type of sugar known as fructose. Fructose is a type of carbohydrate that is known to cause gas in some people. However, the amount of fructose in watermelon is relatively low compared to other fruits.

According to a study published in the Journal of Food Science, watermelon contains approximately 3.4 grams of fructose per 100 grams of fruit. This is lower than other fruits such as apples and pears, which contain between 5-10 grams of fructose per 100 grams of fruit.

Why Does Watermelon Contain Fructose?

Fructose is a type of sugar that is found naturally in many fruits and vegetables. It is a simple sugar and is easily broken down by the body for energy.

Watermelons, like most fruits, contain a combination of glucose and fructose. This is known as a disaccharide. When we consume watermelon, the disaccharide is broken down into its individual sugars by enzymes in the small intestine. These sugars are then absorbed into the bloodstream and used for energy.

Can Some People Be Sensitive to Fructose?

Yes, some people can be sensitive to fructose. Fructose malabsorption is a condition where the body has difficulty digesting fructose. This can lead to bloating, gas, and other gastrointestinal symptoms.

If you think you may be sensitive to fructose, it is important to speak with your healthcare provider. They can help determine if fructose malabsorption is causing your symptoms and provide advice on how to manage them.

How to Prevent Gas and Bloating After Eating Watermelon

If you enjoy eating watermelon but are concerned about gas and bloating, there are several steps you can take to reduce your risk:

  • Eat watermelon in moderation: Eating too much watermelon in one sitting can increase your risk of gas and bloating. Try to limit your intake to one or two slices at a time.
  • Chew your food well: Chewing your food well can help break it down and make it easier to digest.
  • Drink plenty of water: Drinking plenty of water can help flush out any excess gas in your system.
  • Avoid carbonated beverages: Carbonated beverages can increase your risk of gas and bloating. Stick to water or other non-carbonated beverages when eating watermelon.
  • Stay active: Regular exercise can help stimulate digestion and reduce your risk of gas and bloating.


Watermelon is a healthy and delicious summer fruit that can provide many health benefits. While it may cause gas and bloating in some people, the risk is relatively low compared to other foods. By eating watermelon in moderation and following some simple tips, you can enjoy this fruit without worrying about gas and bloating.


  • Can watermelon cause diarrhea?
  • While watermelon is generally safe for most people, consuming too much of it can lead to diarrhea. This is because watermelon has a high water content and can act as a natural diuretic.

  • Can eating watermelon at night cause gas?
  • Eating watermelon at night is unlikely to cause gas specifically. However, eating a large meal, including watermelon, just before bed can increase your risk of acid reflux and indigestion.

  • Can watermelon cause constipation?
  • No, watermelon is unlikely to cause constipation. In fact, the high water and fiber content in watermelon can help promote regular bowel movements.

  • Is it safe to eat watermelon during pregnancy?
  • Yes, watermelon is generally safe to eat during pregnancy. It is a good source of hydration and contains important nutrients such as vitamin C and beta-carotene.

  • What are some other fruits that can cause gas?
  • Fruits such as apples, pears, peaches, and plums are high in fructose and can cause gas and bloating in some people.


Brown, C. R., & Edwards, C. G. (2000). Watermelon. Crop Production Science in Horticulture, 8, 343-376.

Jaime J. Vance, Amanda L. Stull, Liliam Pascual Guerrero & Penelope M. Perkins-Veazie (2015) Polyphenols with antiglycation activity and mechanisms of action: A review of recent findings, Journal of Food Processing and Preservation, 39:4, 1-13.

NHS (2018) Fructose Malabsorption. NHS.

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