Are Prunes Good for Constipation?

Yes, prunes can help adults with mild constipation because their fiber and sorbitol help soften stool and support bowel movements.

Can prunes help with constipation?

Prunes are a reasonable food to try if your stools are hard or difficult to pass. Studies suggest they can improve stool frequency and consistency, although they do not work for everyone and may not relieve every symptom, such as straining.

They are one of several best foods for constipation. Food changes may help mild symptoms, but persistent constipation or symptoms with warning signs need medical attention.

How do prunes help bowel movements?

Prunes contain fiber, which adds bulk to stool and can help it move through the digestive tract. They also contain sorbitol, a naturally occurring sugar alcohol that draws water into the bowel and can make stool softer.

These effects can be helpful when stool is hard or bowel movements are infrequent. They can also cause gas, bloating or loose stools, particularly if you suddenly eat more prunes than you are used to.

Drinking enough fluid supports normal bowel function, especially when increasing fiber. If you want more hydration ideas, see the best drinks for constipation.

What does the research say about prunes and constipation?

In a small randomized trial of 40 adults with chronic constipation, prunes improved the frequency of complete bowel movements and stool consistency compared with psyllium, a fiber supplement. Participants used each treatment for 3 weeks; straining and overall constipation symptoms did not differ significantly between the treatments.

The broader evidence is less decisive about whether prunes are better than psyllium. A 2024 systematic review and meta-analysis included two prune studies and found no clear difference in stool frequency between prunes and psyllium. This does not mean prunes are ineffective; it means the comparative evidence is limited.

An earlier systematic review found only one trial in people with constipation and noted limitations in the available studies. Overall, prunes are promising for stool frequency and consistency, but the evidence does not establish that they will resolve every person's constipation or work better than all other options.

How should you use prunes for constipation?

Start with a small serving of pitted prunes and increase gradually if needed and well tolerated. Eating a large amount at once is more likely to cause uncomfortable gas, bloating or diarrhea. Amounts used in research are not necessarily the best starting point for you.

You can eat prunes on their own or add them to a meal. Choose an approach you can follow comfortably, and pay attention to whether your stools become easier to pass rather than increasing the amount rapidly.

Drink enough fluid unless a healthcare professional has advised you to limit it. Regular movement and a consistent opportunity to use the toilet may also support bowel habits; avoid ignoring the urge to go when possible.

If prunes make your symptoms worse, reduce the amount or stop eating them. If constipation persists despite food and routine changes, talk with a healthcare professional rather than relying on prunes alone.

Who should be careful with prunes?

People with irritable bowel syndrome or a sensitivity to sorbitol may find that prunes worsen bloating, cramps or diarrhea. People with diabetes can generally eat prunes, but should account for their carbohydrate content in their usual eating plan.

If you have kidney or heart disease and have been told to restrict fluids, follow your clinician's advice rather than increasing fluid intake on your own. If constipation begins after starting an opioid, iron supplement or another medicine, contact your prescriber; do not stop or change prescribed medication without advice.

Prunes can be part of a normal diet during pregnancy, but discuss persistent constipation with a pregnancy care professional. For infants and children, ask a pediatrician about age-appropriate options and preparation; whole prunes with pits can be a choking hazard.

Seek urgent medical care for severe abdominal pain, vomiting, an inability to pass gas, or bloody or black stools. See a healthcare professional for persistent or recurrent constipation, unexplained weight loss, or a new and lasting change in bowel habits.