Why are prunes laxative?

Prunes are often considered a natural laxative because they are a good source of dietary fiber, particularly insoluble fiber. Insoluble fiber is important for digestive health because it attracts water and helps to add bulk to the stool. This can help to soften the stool and make it easier to pass, relieving constipation.

Prunes also contain sorbitol, a type of sugar alcohol that is poorly absorbed by the small intestine. As a result, it draws water into the large intestine, further softening the stool and promoting bowel movements.

In addition, prunes contain several other compounds that have been found to have laxative effects, including dihydroxyphenyl isatin (DPHI), chlorogenic acid, and malic acid. These compounds stimulate the muscles of the colon, promoting peristalsis and helping to move the stool through the intestines more quickly.

Overall, the combination of dietary fiber, sorbitol, and other compounds in prunes contributes to their laxative properties and makes them a popular natural remedy for constipation. However, it's important to consume prunes in moderation as excessive intake can lead to loose stools or diarrhea.