Prunes usually help relieve constipation within a few hours to a day, depending on the individual and the amount consumed. Most people notice digestive effects between 6 to 12 hours after eating prunes, though in some cases it may be as soon as 3 hours or take up to 24 hours.

How Prunes Work

Prunes are effective because they contain:

• Both soluble and insoluble fiber, which help soften stools and promote movement through the colon.

• Sorbitol, a natural sugar alcohol with a mild laxative effect.

Dosage and Tips

• For adults, starting with 3 to 5 prunes or half a cup of prune juice daily is recommended.

• For children, start with 1 to 2 prunes or 2-4 ounces of prune juice per day.

• Drinking sufficient water enhances the effectiveness and prevents dehydration.

Individual Variation

• The time for prunes to work can differ based on age, diet, hydration, and digestive sensitivity.

• Some people may notice results in just a few hours, while for others it might take about a day.

• Adjust intake as needed to avoid overly frequent bowel movements or diarrhea.

In summary, most people will experience relief from constipation within several hours to one day after consuming prunes, but individual responses can differ.