What Are the Most Common Causes of Nausea and Gas?

Cutting down on vegetables such as broccoli and cabbage can reduce bloating, gas and belching.
Peaches can increase intestinal gas.
Foods such as cauliflower encourage flatulence.
Early stages of pregnancy often cause nausea.
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  • Written By: Joe Dyton
  • Edited By: A. Joseph
  • Last Modified Date: 28 July 2014
  • Copyright Protected:
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The most common causes of nausea and gas can vary for each of these ailments. In the case of gas in the digestive system, it often is caused by the consumption of food or drink. Nausea can be caused by many things, including food or drink, motion sickness, anxiety, certain medicines and some medical conditions. When nausea and gas are experienced together, the causes might be related, but nausea and gas are such common conditions that they also can have completely unrelated causes.

Foods that might cause gas include vegetables such as asparagus, broccoli, cauliflower, green peppers and onions. Beans; fruits such as apricots, bananas and peaches; eggs and fried and fatty foods are also culprits when it comes to having gas. On the beverage side, sodas, fruit drinks, beer and red wine also cause one to have gas.

Food isn’t the only thing that can cause gas, however. Swallowed air that isn’t burped up could pass through the digestive system and turn into flatus, more commonly known as passing gas. Certain medicines and supplements also can cause gas as a side effect.

For nausea, the most common causes can vary widely. A lot of times, nausea is caused by an upset stomach from something a person ate. This could be a result of food poisoning or eating too much in one sitting.


Food is just one of the many causes of nausea, though. A person easily can become nauseated from seasickness or motion sickness. Certain medicines can cause nausea, as can a bad reaction to a disturbing sight or smell. Anxiety or nervousness can make someone nauseous, as could the stomach flu. Women who are early on in their pregnancy might experience nausea, especially in the morning.

More serious causes of nausea are diseases such as gallbladder disease and cancer, heart attacks, concussions and gastroparesis. Age also can be a factor when it comes to nausea. Children often vomit because of viral infections, food poisoning or food allergies.

The timing of nausea can help when one is trying to figure out the cause. If it happens shortly after eating, there’s a good chance that the cause was food poisoning or gastritis, an inflammation of the stomach lining. An ulcer also is a possibility.

The list of common causes of nausea and gas are long, but both ailments are preventable. To keep gas to a minimum, foods that induce gas should be consumed in moderation. A dietary supplement that reduces gas also can help. To prevent nausea, one should try to eat smaller meals, eat slower and be sure that all foods are cooked properly and under sanitary conditions. Foods that are hard to digest should be avoided, and liquids consumed during meals should be kept to a moderate quantity.


Discuss this Article

Post 3

I have these problems frequently because of irritable bowel syndrome. The symptoms show up after I eat. I first have nausea, followed by extreme gas and bloating. My stomach is so bloated sometimes that it's painful! I also get diarrhea.

There are times when I'm mostly fine and then I get another IBS flare-up and the symptoms are back full-blown. I'm seeing another doctor next week.

I started taking probiotic supplements recently which have helped with the nausea and gas a lot. But I'm still far from being cured.

Post 2

@simrin-- I think you're right. If it was food poisoning, the symptoms wouldn't have continued for a week. It sounds like you might have an issue with your stomach and bowels. But you can't figure out the cause without seeing a doctor. Plus, these symptoms are so common, they can be a sign of so many different problems.

By the way, are you a male or female? If you are a female, these symptoms could also be early signs of pregnancy. I remember having nausea and gas symptoms during my first trimester. You might want to look into this first.

Post 1

I've been experiencing nausea, bloating, gas and back pain for the past week. I thought that I just had a stomach bug but if that was the case, I think I would have been feeling better by now. The symptoms are not going away, they've been constant for a week. What might be the cause? Has anyone experienced this type of thing before?

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