Several simple, everyday habits can help you have regular bowel movements without reaching for a laxative. The most effective natural approaches work by adding bulk to your stool, drawing water into your intestines, or stimulating the muscular contractions that move waste through your colon. Most people see improvement within a few days to a few weeks of making changes to fiber intake, hydration, movement, and posture.
Eat More Fiber, but Know the Two Types
Fiber is the single most important dietary factor for regular bowel movements, and the recommended daily intake is 25 to 30 grams from food, not supplements. Most people fall well short of that. But not all fiber works the same way.
Insoluble fiber, found in whole wheat, vegetables, and nuts, speeds the passage of food through your stomach and intestines and adds bulk to your stool. Think of it as roughage that physically pushes things along. Soluble fiber, found in oats, beans, apples, and citrus fruits, absorbs water and turns into a gel during digestion. This softens stool and makes it easier to pass. You need both types, and the easiest way to get them is by eating a mix of whole grains, fruits, vegetables, and legumes throughout the day.
One important caveat: increasing fiber without increasing water can actually make constipation worse. Hard, bulky stool that doesn’t have enough moisture behind it is harder to move. So any fiber boost needs to come alongside adequate fluids.
Prunes and Kiwifruit Are Backed by Evidence
Not all fruits are equal when it comes to getting things moving. Prunes and kiwifruit stand out because clinical trials have tested them head-to-head against other foods and found real differences.
Kiwifruit significantly increases stool frequency and improves stool consistency compared to orange juice and other controls. In studies, people eating two to three kiwifruits daily for three to four weeks reported softer, more regular stools. The effect is partly due to fiber, but kiwifruit also contains an enzyme that aids digestion and a natural compound that helps retain water in the intestine.
Prunes work through a different mechanism. They’re high in sorbitol, a sugar alcohol your body can’t fully digest or absorb. Sorbitol holds water in its molecules as it passes through your gut, increasing the water content and weight of your stool. This is essentially the same principle behind osmotic laxatives, just delivered through food. About 100 milliliters of prune juice daily (roughly half a cup) was the dose used in clinical research over four-week periods.
Other fruits with meaningful sorbitol content include pears, apples, and cherries. If you find prunes unappealing, these are reasonable alternatives.
Drink Enough Water
Low water intake makes stools hard, reduces their weight, and directly contributes to constipation. Research has found a significant association between fluid intake and both the frequency and type of bowel movements people have. People drinking less than 1,000 milliliters a day (about four cups) had notably worse outcomes than those drinking more.
There’s no magic number that works for everyone, but aiming for at least six to eight cups of water or other non-caffeinated fluids daily gives your colon the moisture it needs to keep stool soft. If you’re eating a high-fiber diet, you likely need more. Pay attention to the color of your urine as a practical gauge: pale yellow generally means you’re well hydrated.
Coffee Can Trigger a Bowel Movement
Coffee promotes the urge to defecate in roughly one-third of the population. This isn’t just about caffeine, though caffeine plays a role. It stimulates the release of a hormone called cholecystokinin, which promotes intestinal motility, essentially telling your gut muscles to start contracting. Coffee also triggers the gastrocolic reflex, a wave of contractions in the colon that naturally occurs after eating or drinking.
If you’re one of the people who responds to coffee this way, having a cup in the morning can be a reliable and simple trigger. If coffee doesn’t produce this effect for you, drinking more of it won’t help.
Move Your Body
Physical activity helps stimulate the natural contractions that push waste through your colon. You don’t need intense exercise. Walking, yoga, and core-strengthening routines all contribute. In one study, a 12-week program of core exercises (two 60-minute sessions per week) significantly reduced the time it took for waste to move through the left side of the colon and through the entire colon. That’s the stretch where stool firms up and slows down for many people.
Even a 15 to 20 minute walk after a meal can make a difference. The combination of gravity, gentle abdominal compression, and increased blood flow to the gut all support movement through the intestines. Prolonged sitting, on the other hand, does the opposite.
Change Your Toilet Posture
The position you sit in on the toilet matters more than most people realize. When you sit on a standard toilet with your knees at a 90-degree angle, a muscle called the puborectalis wraps around your rectum like a sling and partially kinks it. This creates a natural barrier that helps with continence but makes it harder to fully empty your bowels.
Squatting relaxes that muscle and widens the angle between your rectum and anal canal, leading to easier, more complete evacuation with less straining. Since most Western toilets don’t allow a full squat, a simple footstool (often about 7 to 9 inches tall) placed in front of the toilet raises your knees above your hips and mimics the squatting position. Many people notice an immediate difference the first time they try it.
Magnesium-Rich Foods
Magnesium draws water into the intestines through osmosis, softening stool and increasing the volume that stimulates a bowel movement. This is why magnesium-based laxatives are among the most commonly recommended options. But you can also boost your magnesium through food.
Good sources include pumpkin seeds, almonds, spinach, black beans, dark chocolate, and avocados. A handful of pumpkin seeds alone delivers a substantial portion of your daily magnesium needs. For people whose constipation is mild and occasional, consistently eating magnesium-rich foods can be enough to keep things regular without any supplement.
Probiotics for Gut Motility
Certain probiotic strains can help speed up how quickly waste moves through your digestive tract. The most studied strain for this purpose is Bifidobacterium lactis HN019, which has been shown to reduce total transit time in adults with functional constipation. It works by increasing the strength of the coordinated muscular contractions that sweep waste from the upper colon all the way to the rectum, boosting their amplitude by over 50% in laboratory studies.
You can find this strain in some yogurts and fermented dairy products, as well as in supplement form. Fermented foods like kefir, sauerkraut, and kimchi also support a diverse gut microbiome, which contributes to overall digestive regularity even if the specific strains haven’t been individually tested for transit time.
Build a Morning Routine
Your colon is most active in the first hour after waking and after meals. Taking advantage of this natural rhythm can train your body toward regularity. A reliable routine looks something like this: wake up, drink a glass of water or coffee, eat breakfast with fiber, and then give yourself unhurried time on the toilet. The combination of hydration, food, and the gastrocolic reflex creates optimal conditions for a bowel movement.
Ignoring the urge to go, whether because of a rushed morning or discomfort using public restrooms, trains your rectum to stop sending the signal as strongly. Over time, this can contribute to chronic constipation. Responding to the urge promptly and consistently helps maintain the reflex.
When Natural Methods Aren’t Enough
Constipation that lasts longer than three weeks despite dietary and lifestyle changes may point to something beyond simple sluggish digestion. Rectal bleeding, blood in your stool, black-colored stools, unexplained weight loss, persistent stomach pain, or unusual changes in stool shape or color all warrant a medical evaluation rather than more home remedies.