Why do you want to go big after drinking a cup of coffee?

I don't know if you have ever had this awkward experience: every time I finish a cup of coffee, I want to, um, poop. It is said that three out of ten coffee drinkers will have this experience.

In the past, scientists used to think that the "culprit" was caffeine's laxative effect, but they later found that decaffeinated coffee had the same effect, meaning the culprit was likely to be the chemicals in coffee, not caffeine.

Thousands of different compounds are known in a cup of coffee, and although experts have not yet identified whether one or many of them have laxative effects, the American Chemical Society recently released a video. it reveals exactly how these chemicals affect the intestines, in other words, how a cup of coffee is converted into a piece of poop.

Studies have shown that for the large intestine, drinking a cup of coffee is like eating a big meal, which can affect the intake of the large intestine in just four minutes. This is because coffee contains a compound called chlorogenic acid, which increases the secretion of stomach acid, which helps the body break down proteins, causing the stomach to dump food residues into the intestines more quickly.

Coffee increases the production of cholecystokinin and gastrin, helping them to digest food. Cholecystokinin promotes the secretion of digestive juices and bile, while gastrin accelerates the movement and peristalsis of the colon, helping food residues move at full speed to their final destination.

This explains why some people want to go to the bathroom after drinking coffee.