Several common fruits can relieve constipation naturally, thanks to their fiber, water content, and natural sugar alcohols that draw water into the colon. Prunes, kiwifruit, pears, and berries are among the most effective options, each working through slightly different mechanisms. Most adults need between 22 and 34 grams of fiber daily, and fruit is one of the easiest ways to close that gap.
Prunes: The Classic Choice
Prunes (dried plums) have a well-earned reputation as nature’s laxative. They contain abundant sorbitol, a sugar alcohol your small intestine absorbs poorly. When sorbitol reaches the colon, it pulls water into the stool, softening it and triggering movement. Prunes also contain pectin and polyphenols that work alongside the sorbitol.
A randomized controlled trial published in the American Journal of Gastroenterology found that prune juice containing sorbitol, pectin, and polyphenols improved subjective constipation complaints, softened hard stools, and normalized bowel habits compared to placebo. Eating three to five whole prunes daily, or drinking a small glass of prune juice, is a reasonable starting point. Whole prunes have the added benefit of insoluble fiber from the skin, which adds bulk.
Kiwifruit Rivals Fiber Supplements
Green kiwifruit is one of the best-studied fruits for constipation. A systematic review and meta-analysis found that kiwifruit increased the weekly frequency of spontaneous bowel movements by roughly one extra movement per week compared to psyllium husk, a widely used fiber supplement. People eating kiwifruit also had softer stools on a standardized consistency scale, with a meaningful difference over psyllium.
Kiwifruit works through multiple pathways at once. It contains both soluble and insoluble fiber, plus a protein-digesting enzyme that helps break down food in the upper digestive tract. Its high water content also contributes to softer stools. Two green kiwifruits per day is the dose most clinical trials used. Unlike some high-fiber interventions, kiwifruit didn’t increase abdominal pain or straining compared to psyllium, making it a comfortable option for people who get crampy from supplements.
Pears Pack Sorbitol and Fructose
Pears are particularly rich in both fructose and sorbitol compared to other fruits. A medium pear contains roughly 2.5% sorbitol and 4.5% fructose by weight, along with several grams of fiber. That combination is what gives pears their laxative properties. The sorbitol draws water into the colon (the same mechanism as prunes), the fructose speeds fermentation by gut bacteria, and the fiber adds bulk.
Eat pears with the skin on. The skin holds a significant portion of the insoluble fiber, which moves through your digestive system largely intact and helps push things along. One important note: the same fructose and sorbitol content that makes pears helpful for constipation can cause diarrhea in young children or people with fructose malabsorption. If pears give you bloating or loose stools, you may be sensitive to one of these sugars.
Apples and the Role of Pectin
Apples are a strong source of pectin, a soluble fiber that attracts water from the digestive tract and forms a gel. This gel softens stool and helps it pass more easily. Like pears, apples deliver the most benefit when you eat the skin, which contains both insoluble fiber and additional pectin.
Pectin also acts as a prebiotic, feeding beneficial gut bacteria that produce short-chain fatty acids in the colon. These fatty acids stimulate fluid secretion and muscle contractions in the intestinal wall. A medium apple with skin provides around 4 grams of total fiber. Applesauce retains some pectin but loses the insoluble fiber from the skin, so whole apples are the better choice for constipation.
Berries: Small Fruits, Big Fiber
Raspberries and blackberries are fiber powerhouses relative to their size. One cup of raspberries delivers 8 grams of fiber, nearly a third of the daily goal for many adults. Blackberries are similarly high. That fiber is a mix of soluble and insoluble types, giving you both stool-softening and bulk-forming benefits in one handful.
Strawberries and blueberries contain less fiber per serving but are still solid choices, and they tend to be gentler on people with fructose sensitivities. Berries also have high water content, which helps keep stool hydrated. Toss a cup into oatmeal or yogurt and you’ve made a significant dent in your daily fiber intake without any supplements.
Citrus Fruits and Gut Motility
Oranges, grapefruits, and other citrus fruits contribute both soluble fiber (especially in the white pith and membranes) and plant compounds that appear to stimulate the colon directly. One such compound found in citrus promotes the secretion of chloride ions in the colonic lining, which pulls water into the intestinal space. It also supports the survival of specialized pacemaker cells in the colon wall that coordinate the rhythmic contractions pushing stool forward.
Animal studies show this leads to increased moisture in stool, faster movement through the small intestine, and higher levels of neurotransmitters involved in gut motility. For practical purposes, eating a whole orange rather than drinking juice gives you far more fiber. One large orange has about 4 grams of fiber, most of it in the membranes between segments.
How Much Fiber You Actually Need
The Dietary Guidelines for Americans set fiber goals at 14 grams per 1,000 calories consumed. In practice, that works out to 28 to 34 grams daily for most adult men and 22 to 28 grams for most adult women, depending on age. The average American gets about 15 grams, roughly half the target.
You don’t need to hit these numbers overnight. Adding too much fiber too quickly is one of the most common causes of bloating and gas. Increase your fruit intake gradually over a week or two, and drink more water as you go. Fiber works by absorbing water, so if you eat more fiber without enough fluid, you can actually make constipation worse.
Fruits to Approach Carefully
Some of the best fruits for constipation are also high in FODMAPs, short-chain carbohydrates that ferment rapidly in the gut. If you have irritable bowel syndrome or fructose malabsorption, high-fructose fruits like apples, pears, and watermelon can trigger bloating, gas, and stomach pain instead of relief. The Mayo Clinic lists these as foods to limit if you absorb fructose poorly.
Lower-fructose alternatives that are generally better tolerated include grapes, blueberries, and strawberries. You may also find that eating smaller portions of high-fructose fruits alongside a meal, rather than on an empty stomach, reduces symptoms. The meal slows absorption and gives your gut more time to handle the fructose without overwhelming it.
Putting It Together
The most effective approach combines several of these fruits rather than relying on one. A day that includes two kiwifruits at breakfast, a pear as a snack, and a cup of raspberries after dinner delivers roughly 16 to 18 grams of fiber from fruit alone, plus sorbitol, pectin, and plenty of water. Pair that with vegetables, whole grains, and adequate hydration, and most people will notice a difference within a few days.
If you’ve been constipated for weeks and increasing fruit intake doesn’t help, the issue may not be dietary. Slow colonic transit, pelvic floor dysfunction, and certain medications can all cause constipation that fiber alone won’t fix.