Can coffee cause diarrhea on an empty stomach?

In this short article, we will provide an answer to the question “Can coffee cause diarrhea on an empty stomach?” and the information on the reason behind this concern. 

Can coffee cause diarrhea on an empty stomach?

Yes! Some people may get diarrhea after drinking coffee on an empty stomach. Because drinking coffee on an empty stomach increases the production of acid in the stomach, some people may experience loose stools as a result. Cramps, stomach aches, and bloating are just a few of the digestive issues associated with drinking coffee first thing in the morning on an empty stomach.

What is it about coffee that makes you want to use the restroom?

Even though coffee is known to stimulate the digestive tract, experts believe that this response could be produced by a multitude of factors. One possible explanation is that coffee contains a high concentration of caffeine when compared to other hot drinks such as tea.

In addition to being one of many high-caffeine foods, coffee contains caffeine, which may contribute to the symptoms of irritable bowel syndrome.

Several studies have found that caffeine has a laxative effect on the body. People were given either water or caffeine powder that was dissolved in water, and their anorectal function was tested as a result of the experiment. According to the findings, caffeine consumption resulted in increased anal sphincter spasms as well as a larger desire to urinate.

The stimulant property of caffeine means that it helps peristalsis to travel more swiftly through the digestive tract (muscle contractions that move food through the digestive tract),

According to the findings of the study, however, there may be other factors at play. Coffee, both caffeinated and decaffeinated, stimulates the production of Gastrin, a hormone that tells the stomach to release gastric acid. Given that gastrin is a digestive aid, our desire to use the restroom after drinking coffee may be a result of this.

Another reason why coffee affects our bowels is because of the gastrocolic reflex, which is a physiological response in which the act of eating or drinking causes movement in the gastrointestinal tract when consumed. A cup of coffee with breakfast, for example, may be sufficient to trigger the desire ‘to go’ only under the act of drinking it. This response is also more responsive in the mornings when a large number of people are reaching for their coffee maker.

In addition, the acidic nature of coffee can stimulate the bowels, which may explain why some people experience stomach difficulties when drinking both decaffeinated and regular coffee. Both the decaf and caffeinated variants include chlorogenic acid, which boosts stomach acid levels as well as gastric acid output, resulting in a stimulating effect. As a result, this acid facilitates the passage of food through the digestive tract.

What is the link between coffee consumption and irritable bowel syndrome?

“People who suffer from irritable bowel syndrome (IBS) may have a more sensitive gut, which makes the effects of caffeine more noticeable.”

Caffeine is a stimulant, which means that it has the potential to produce overexcitation of the nervous system, particularly the component of the nervous system that regulates digestion.

What can you do to combat the negative effects of coffee?

Getting things started, on the other hand, is not always a bad thing. Drinking too much caffeine should be limited to 400 milligrams per day, which is similar to three to five cups of coffee. Pregnant women should avoid consuming more than 200 mg of caffeine each day, according to the American Pregnancy Association. Some people, on the other hand, maybe more sensitive to the effects of a flat white than others, depending on their genetic makeup.

You should cut back on your coffee usage.

It is possible that limiting one’s caffeine intake will be good for those who experience stomach discomfort after drinking coffee. Decaffeinated or half-caffeinated coffee may be beneficial, and other research suggests that the type of coffee consumed may also have an impact. As a result of a chemical imbalance, according to a study released in 2014, dark roast coffee creates less stomach acid than medium roast coffee.

It is not recommended to consume coffee on an empty stomach.

Although many people begin their days with a cup of coffee, doing so on an empty stomach may exacerbate unwanted side effects such as diarrhea and stomach discomfort. Preparing a cup of coffee before or after a meal may out to be advantageous.

Extras should be avoided.

Another possibility is how coffee drinks affect their quality. Adding cow’s milk, cream, syrups, sugar, or sweeteners to a recipe may induce stomach discomfort in certain individuals.

However, because each person’s coffee sensitivity is unique, it may take some trial and error to figure out which methods work best for them.


In this short article, we provided an answer to the question “Can coffee cause diarrhea on an empty stomach?” and the information on the reason behind this concern. 


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