How to Make Stewed Prunes for Constipation

Stewed prunes are one of the simplest and most effective home remedies for constipation, backed by a meaningful body of clinical research. The basic method involves simmering dried prunes in water until they soften and produce a thick, sweet liquid, then eating both the fruit and the liquid. The combination of sorbitol, fiber, and plant compounds in prunes is what drives the laxative effect, and gentle cooking makes the fruit easier to eat and digest while preserving those active ingredients.

A Simple Recipe

You do not need special equipment or unusual ingredients. Place about 10 to 12 dried prunes (sometimes labeled “dried plums” in stores) in a small saucepan and cover them with roughly two cups of water. You can add a thin slice of lemon or a small cinnamon stick if you like, but neither is necessary. Bring the water to a boil, then reduce the heat to a low simmer. Cover the pot and let the prunes cook for 20 to 25 minutes, until they are plump and soft and the liquid has thickened into a light syrup.

Remove the pot from the heat and let everything cool to a comfortable eating temperature. The prunes will continue to absorb liquid as they cool, so the compote will thicken a bit more as it sits. Transfer the prunes and their liquid to a jar or bowl. You can store them in the refrigerator for up to five days. Eat them warm or cold, on their own, spooned over yogurt or oatmeal, or blended into a smoothie.

A few practical tips. If your prunes are particularly dry and hard, soak them in the water for an hour before cooking. Some people prefer to start with pitted prunes to avoid fishing out pits later. And if you want a smoother texture for blending into other foods, cook them a bit longer until they start to fall apart.

Why Prunes Relieve Constipation

Prunes work through several overlapping mechanisms, not just one. The most important is their high sorbitol content. Dried prunes contain roughly 14.7 grams of sorbitol per 100 grams. Sorbitol is a sugar alcohol that your small intestine absorbs slowly and incompletely. The unabsorbed portion draws water into the large intestine by osmosis, softening the stool and making it easier to pass. Prune juice also contains sorbitol, at about 6.1 grams per 100 grams, which is why juice has a laxative effect even though it lacks the fiber of whole fruit.¹

Fiber contributes too. Dried prunes provide about 6.1 grams of dietary fiber per 100 grams, a mix of soluble and insoluble types. Soluble fiber absorbs water and forms a gel-like mass that adds bulk to the stool, while insoluble fiber speeds movement through the colon. Stewing prunes softens the fiber but does not destroy it, so you get the full benefit.¹

Prunes also contain a high concentration of phenolic compounds, mainly chlorogenic and neochlorogenic acids. These plant chemicals appear to stimulate the intestinal lining and may contribute to the laxative effect on top of what the sorbitol and fiber accomplish. The combination of all three factors is probably why prunes tend to be more effective than supplements that deliver only fiber or only sorbitol in isolation.

How Much to Eat and How Often

Clinical trials have tested specific daily doses that you can use as a practical starting point. In a randomized controlled trial, people eating about 80 grams of prunes per day (roughly 8 to 10 prunes) saw a meaningful increase in stool weight and stool frequency compared to a control group. A higher dose of 120 grams per day produced an even larger increase in stool weight, though the boost in frequency was actually slightly lower than the 80-gram group.²

For most people, starting with about 50 to 80 grams per day is sensible. That translates to roughly 5 to 8 stewed prunes plus the cooking liquid, eaten once a day or split between morning and evening. If that amount does not produce results after a few days, you can gradually increase toward 100 or 120 grams. Jumping straight to a large dose is the main cause of the bloating and gas that some people experience, so ramping up slowly is worth the patience.

Consistency matters more than any single large serving. Eating stewed prunes daily over a week or two tends to produce a more reliable effect than eating a big bowl once and waiting. Most people notice a difference within one to three days of starting daily consumption, though the effect becomes more predictable after the first week.

What the Clinical Evidence Actually Shows

Prunes are not just folk medicine; they have been tested head-to-head against psyllium, which is the active ingredient in many over-the-counter fiber supplements. In one randomized trial, people with chronic constipation who ate dried prunes had significantly more complete spontaneous bowel movements per week than those who took psyllium. Stool consistency also improved more with prunes. Both treatments reduced straining by a similar amount, and both were well tolerated.³

A later trial compared prunes to both psyllium and green kiwifruit in people with chronic constipation. All three treatments significantly increased weekly bowel movement rates. Prunes improved stool consistency and reduced straining, performing comparably to the other two interventions.⁴

These results are worth knowing because they suggest that prunes are not merely “better than nothing.” They perform on par with, and in some measures better than, fiber supplements that doctors commonly recommend. For someone looking for a food-first approach rather than a pill, stewed prunes are a genuinely evidence-based option.

Stewed Prunes vs. Other Preparations

You can eat prunes in several forms, and each has trade-offs. Understanding the differences helps you pick the preparation that fits your situation and preferences.

Stewed prunes: Cooking softens the fruit, making it easier to chew and digest, especially for older adults or anyone with dental issues. The cooking liquid itself contains dissolved sorbitol and some soluble fiber, so drinking it adds to the laxative effect. Stewing does not reduce the sorbitol or phenolic content in any meaningful way because both are heat-stable and water-soluble, meaning they transfer into the liquid rather than being destroyed.
Dried prunes (eaten as-is): These have the highest fiber per serving because nothing has been filtered out. They are portable and require no preparation. The clinical trials cited above used dried prunes, so the evidence base applies most directly to this form. The downside is that their chewy texture can be unpleasant for some people, and eating a large number can feel like a chore.
Prune juice: Juice retains sorbitol and phenolic compounds but loses almost all the fiber because it is filtered before bottling.¹ It still works as a laxative, mainly through the osmotic action of sorbitol, but it is less effective gram for gram than whole prunes. Juice is also higher in concentrated sugar per serving, which matters if you are watching your calorie or sugar intake.
Prune puree: Blending stewed prunes into a smooth puree keeps all the fiber and sorbitol but makes the texture more versatile. You can stir it into oatmeal, spread it on toast, or use it as a base for smoothies. This is especially useful for young children or anyone who dislikes the wrinkly texture of whole stewed prunes.

Stewing is essentially a middle path. You preserve all the active compounds, soften the texture, and create a flavored liquid that adds to the total dose. If you are going to eat prunes regularly as a constipation remedy, stewing them in a batch at the start of each week and refrigerating the result is probably the most sustainable approach.

Side Effects and Practical Cautions

Prunes are a food, not a drug, but they are not free of side effects. The most commonly reported one in clinical trials is increased flatulence, which was significantly more frequent among people eating prunes daily.² This is largely due to the sorbitol and fiber being fermented by bacteria in the large intestine. Starting with a smaller number of prunes and increasing gradually over a week gives your gut microbiome time to adjust and usually reduces the severity of gas.

Calorie and sugar content are worth being aware of, though they rarely pose a problem at the doses used for constipation relief. A serving of about 8 to 10 dried prunes contains roughly 150 to 200 calories and around 25 to 30 grams of sugar, most of it naturally occurring. If you are managing diabetes, this amount of sugar can affect blood glucose, so eating stewed prunes alongside a meal that includes protein or fat will help blunt the spike. Prune phenolic compounds may slightly slow glucose absorption, but this is not a reason to ignore carb counting if you need to.

There is no well-established upper limit for prune consumption, but eating far more than the amounts studied in trials (above 120 grams per day) can cause cramping and diarrhea. If you find that even moderate amounts cause loose stools, you have likely overshot your personal threshold and should scale back.

If you take prescription medications, particularly anything with a narrow therapeutic window, be aware that significant changes to your bowel habits can theoretically affect how quickly oral medications transit through your gut. This is not unique to prunes; any effective laxative raises the same question. Talk to your pharmacist or doctor if you are on medications where absorption timing matters.

Making Stewed Prunes More Palatable

Some people love the taste of prunes. Others find them cloying or reminiscent of nursing-home dining. If you fall into the second camp, there are ways to make them more appealing without undermining their effectiveness.

Adding citrus balances the sweetness. A squeeze of fresh lemon or orange juice stirred into the finished compote adds brightness and cuts through the one-note sweetness of prunes. Warming spices like cinnamon, a split vanilla bean, or a pinch of cardamom also help. You can simmer these in the cooking water so the flavor infuses into the prunes as they cook.

Mixing stewed prunes with other foods is often the easiest approach. A spoonful of the compote stirred into plain yogurt, layered into overnight oats, or blended into a breakfast smoothie makes the prunes nearly invisible. Some people bake stewed prune puree into muffins or quick breads, which works well, though the heat of baking does not noticeably change the sorbitol content.

For children, who often resist the appearance and texture of whole prunes, blending the stewed fruit into a smooth puree and mixing it with applesauce or a banana smoothie tends to work. Keep in mind that small children need much smaller portions. A tablespoon or two of prune puree is a reasonable starting point for a toddler, while older children might eat three or four stewed prunes.

Acrylamide in Prune Products

Acrylamide is a chemical that forms when certain sugars and amino acids react during heating, and it is present in many common foods like toast, coffee, and french fries. Prune products contain measurable amounts of acrylamide. A study examining Canadian prune products found concentrations ranging from about 58 to 332 micrograms per kilogram in dried prunes and 186 to 916 micrograms per kilogram in prune juice. The acrylamide forms primarily during the drying process, where temperatures below 100 degrees Celsius are enough to trigger the reaction between asparagine and sugars naturally present in plums.⁵

Should this worry you? Probably not at the doses used for constipation relief. The levels found in prunes are broadly comparable to those in many everyday foods that people consume without concern. International food safety bodies recognize acrylamide as something to minimize in the diet overall, but no agency has recommended avoiding prunes specifically because of it. If you are eating 8 to 10 prunes a day, the acrylamide exposure is a minor contribution to your total dietary intake compared to things like roasted potatoes, cereal, and coffee.

One interesting detail from the research: when simulated plum juice was heated under wet, closed-vessel conditions, new acrylamide did not form. In other words, the stewing process itself is unlikely to generate additional acrylamide beyond what already exists in the dried prune. This is a small but reassuring point for people who cook their prunes rather than eating them straight from the bag.

When Prunes Are Not Enough

Stewed prunes work well for mild to moderate constipation, and the clinical evidence confirms they are a reasonable first-line option before reaching for over-the-counter laxatives. But they are not a cure-all. If you have been eating prunes daily for two weeks with no improvement, or if your constipation is accompanied by blood in the stool, unexplained weight loss, or severe abdominal pain, those are signs that something more than a dietary adjustment is needed.

Chronic constipation can be caused by medications (especially opioids, certain antidepressants, and iron supplements), thyroid dysfunction, pelvic floor disorders, or neurological conditions. In these cases, prunes may help at the margins but will not address the underlying cause. A conversation with your doctor is the right next step, particularly if constipation is new, worsening, or associated with other symptoms.

For people whose constipation responds to prunes but who simply dislike eating them, the clinical trials comparing prunes to psyllium and kiwifruit offer a useful roadmap. Psyllium supplements and green kiwifruit both produced meaningful improvements in the same studies, so you have alternatives that work through similar mechanisms if prunes are just not for you.⁴