Do Prunes Trigger IBS?
Yes. Prunes are high FODMAP and a common IBS trigger due to their extremely high sorbitol content. While often recommended as a natural constipation remedy, they can cause severe bloating, gas, and diarrhea in people with IBS. There is no established safe serving size.
What Makes Prune (Dried Plum) Problematic for IBS
Prunes are exceptionally high in sorbitol, a sugar alcohol that is poorly absorbed in the small intestine. The drying process concentrates these sugars, making prunes significantly higher in FODMAPs than fresh plums.
How it works
Sorbitol in prunes is slowly and incompletely absorbed in the small intestine. Unabsorbed sorbitol draws water into the bowel through osmosis and is rapidly fermented by colonic bacteria, producing large volumes of hydrogen gas.
Common Symptoms
Symptoms from prunes can be particularly severe due to their dual action — osmotic effect drawing water into the bowel and gas production from fermentation. Symptoms typically appear within 2-6 hours and may persist for several hours.
Portion Thresholds
Safe Portion
No safe portion — avoid during elimination
Research Reference
Monash University: Prunes are high FODMAP. No safe serving size established.
Practical Tip
Prune juice is also high FODMAP and should be avoided. If you need help with constipation, consider low-FODMAP options like kiwi fruit, which has been clinically shown to support regularity.
Related Foods
Yes. Cherries are high-FODMAP due to their significant sorbitol and fructose content. Even a small handful (3-4 cherries) can trigger bloating, gas, and diarrhea in people with IBS. Both sweet and sour cherries are high in sorbitol. Dried cherries and cherry juice are even more concentrated. Choose strawberries or blueberries instead.
It depends on the portion. A small amount of peach (about half a medium peach or 75g) is low FODMAP, but a full peach contains enough sorbitol to trigger symptoms. Canned peaches in syrup are worse due to added sugars. Stick to small fresh portions for the safest option.
Yes. Dried apricots are high FODMAP due to extremely concentrated fructose and sorbitol content. The drying process removes water and concentrates sugars, making them much more problematic than fresh apricots. There is no safe serving size during the elimination phase.
Yes. Raisins are high FODMAP due to concentrated fructose from the drying process. A single tablespoon (13g) is borderline low FODMAP, but typical snacking portions far exceed this threshold. Most people with IBS should avoid raisins or limit them to very small amounts mixed into other foods.
Frequently Asked Questions
Can I eat prunes on a low-FODMAP diet?
No. Prunes are high FODMAP due to their very high sorbitol content and should be avoided during the elimination phase. There is no established safe serving size.
Are prunes good for IBS constipation?
While prunes are a well-known constipation remedy, they are high FODMAP and can worsen other IBS symptoms like bloating and gas. Kiwi fruit is a better low-FODMAP alternative for constipation.
Is prune juice low FODMAP?
No. Prune juice is also high FODMAP and concentrates the sorbitol even further. It should be avoided on a low-FODMAP diet.
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