Why does coffee make you poop? 4 possible reasons – Medical News Today

Many people believe that coffee makes them poop, and some doctors may advise people with certain intestinal conditions to avoid coffee. Despite this, researchers have yet to confirm the theory that coffee makes you poop.
Although some individuals may report that coffee makes them poop, others do not experience the same effect.
In this article, we explore the reasons why coffee may make some people poop. We also investigate whether decaffeinated coffee has the same effect.
Although researchers cannot agree, there are many people who believe that coffee makes them poop. Some people use coffee to keep their bowel movements regular.
At the same time, many people living with irritable bowel syndrome (IBS) feel that coffee makes their intestinal symptoms worse.
While many researchers have studied the laxative effect of coffee and caffeine, current results are conflicting. Some studies show a laxative effect of coffee, whereas other studies do not. Typically, these studies have only involved small groups of people.
In the following sections, we describe the conclusions of each of these studies.
Some studies suggest that coffee might activate parts of the gastrointestinal tract, including the stomach, gallbladder, and bowel. Researchers have tried to confirm these effects, but other studies indicate that coffee might not affect bowel movements.
An older study from 1998 found that caffeinated coffee, decaffeinated coffee, and a 1,000 kilocalorie (kcal) meal caused more contractions in the colon than water alone.
The researchers also concluded that caffeinated coffee stimulated movements in the colon 60% more strongly than water and 23% more than decaffeinated coffee. The effect of eating a 1,000 kcal meal was the same as drinking caffeinated coffee.
However, the study from the European Journal of Gastroenterology and Hepatology was very small, only involving 12 participants.
Another study with six participants showed that drinking coffee after a meal could help the stomach empty more quickly. Once the stomach empties, food can move to the rectum and stimulate bowel movements.
A review appearing in the World Journal of Gastroenterology stated that caffeinated coffee might increase acid production in the stomach and movements in the colon in some individuals.
Another small study with 10 participants explored the effects of caffeine on the function of the colon and anus. It found that caffeine caused stronger contractions in the anus and rectum.
Coffee may also stimulate the release of a hormone called cholecystokinin from the intestine. Researchers have shown that cholecystokinin can stimulate bowel movements.
It is still unclear what component of coffee stimulates the release of this hormone.
Many people with IBS report that specific foods cause their symptoms, and some may experience diarrhea with coffee.
Researchers in a 2016 study concluded that coffee was a trigger that could make IBS symptoms worse in some people.
The researchers were unable to determine the properties of coffee that cause these symptoms, however.
One study from 2015 examined how people with inflammatory bowel disease (IBD) perceived the effects of coffee on their condition. Of the 442 participants, 73% regularly drank coffee.
Of those who do not drink coffee, 62% believed that coffee made their intestinal symptoms worse.
Some participants who believed that coffee made their symptoms worse still drank coffee.
Approximately 65% of the world’s population cannot fully digest lactose after infancy. Lactose is a sugar in milk and other dairy foods. Lactose intolerance can cause diarrhea.
People who add dairy products, such as milk, to their coffee may have to poop because of the lactose added to their drink.
Researchers have yet to confirm the theory that coffee makes people poop. Some people may be more sensitive to coffee, while others may not feel any effects on their stomachs from coffee.
Researchers conducted many of the studies on the laxative effect of coffee in small groups of people. Further studies with larger sample populations are necessary to confirm how coffee might affect bowel movements.
If researchers confirm that coffee stimulates bowel movements, they then need to determine what component in coffee, for example, caffeine, causes this laxative effect.
Not all studies have demonstrated that coffee has a laxative effect.
A small 2005 study involving 16 participants showed no differences in the force of contractions in the rectum 45 minutes after the individuals drank coffee or water.
Another study, appearing in 2018, explored the factors that influence how long it takes food to travel through the intestinal tract. Here, the researchers associated drinking coffee with food taking longer to move through the gut.
As the number of cups of coffee per week increased, so did the time food traveled through the intestine.
The small 1998 study from the European Journal of Gastroenterology and Hepatology also found that decaffeinated coffee could stimulate bowel movements.
Caffeinated coffee may give people a stronger urge to poop than decaffeinated coffee. However, this study shows that when manufacturers remove caffeine from coffee, people may still feel the urge to poop after drinking the decaffeinated coffee.
Since removing the caffeine from coffee can still cause some people to poop, there may be other compounds in a cup of coffee that act as laxatives. Again, more research is needed to determine what these compounds might be.
Research has yet to confirmed that coffee makes people poop. It may make some people poop, but not others.
Further studies are required to find out whether or not coffee stimulate bowel movements, and, if so, what components in coffee cause a laxative effect.
Last medically reviewed on October 3, 2019
11 sourcescollapsed
This article looks at some possible natural alternatives to laxatives for people looking to have a bowel movement. We also look at when to see a…
An examination of sticky poop, including whether or not it is normal. Included is detail on when to see a doctor and the foods that cause it to happen.
Coffee is a natural source of several nutrients and antioxidants that may benefit the skin. A person can use coffee grounds as an exfoliating scrub…
Coffee is probably the most popular source of caffeine. The caffeine content of a cup of coffee can vary considerably depending on the brewing method…
Adderall is a stimulant medication commonly used to treat ADHD. The caffeine in coffee can alter the side effects and efficacy of the drug. In this…
OUR BRANDS

source