Most people can increase their bowel movement frequency with a handful of straightforward changes to diet, hydration, movement, and bathroom habits. The sweet spot for healthy digestion is generally one to three bowel movements per day, and the stool itself should be smooth, soft, and easy to pass. If you’re not there yet, the fixes below work in order of impact.
Eat More of the Right Fiber
Fiber is the single most reliable way to get things moving, but not all fiber works the same way. There are two types that actually produce a laxative effect, and one common type that does nothing for constipation at all.
Coarse, large-particle insoluble fiber (the kind in wheat bran, raw vegetables, and whole grains) mechanically stimulates the gut wall, triggering it to secrete water and mucus. Gel-forming soluble fiber (found in psyllium husk, oats, and chia seeds) holds onto water like a sponge, keeping stool soft even as it moves through the colon. Both types need to survive the full trip through your digestive tract without being broken down by bacteria to do their job.
Here’s the catch: fermentable soluble fibers like inulin, fructooligosaccharides, and wheat dextrin don’t provide a laxative effect. Gut bacteria break them down before they reach the end of the line. Some can even make constipation worse. So loading up on “fiber-enriched” snack bars or supplements that rely on these ingredients may not help. Psyllium husk, on the other hand, resists fermentation and is one of the most effective fiber supplements for softening stool.
Most adults fall well short of their daily fiber targets. Women need 22 to 28 grams per day depending on age, and men need 28 to 34 grams. A typical American diet delivers roughly 15 grams. Closing that gap with whole foods like beans, lentils, berries, broccoli, and whole grain bread can make a noticeable difference within a few days. If you increase fiber quickly, start slow and build up over a week or two to avoid gas and bloating.
Drink Enough Water
Fiber can only do its job if there’s enough water in your system. When fluid intake drops, stool dries out and transit time slows down. Animal research has shown that cutting water intake by half can double the time it takes for food to travel through the entire digestive tract. The stool that eventually arrives is harder, smaller, and more difficult to pass.
There’s no magic number that works for everyone, but a reasonable baseline for most adults is around eight cups (64 ounces) of water per day, adjusted upward if you exercise, live in a hot climate, or eat a high-fiber diet. Coffee and tea count toward your total. The simplest check is your urine color: pale yellow means you’re well hydrated, dark yellow means you need more.
Use Your Body’s Built-In Timing
Your colon has a natural reflex that pushes stool toward the exit after you eat. This gastrocolic reflex is strongest in the morning and immediately after meals. That’s why so many people feel the urge to go right after breakfast. If you’ve been ignoring that urge because you’re rushing out the door, you’re working against your own biology.
Building a consistent morning routine helps. Wake up, drink something warm, eat breakfast, and then sit on the toilet for five to ten minutes, even if the urge hasn’t fully arrived. Over time, your body learns the pattern and the reflex strengthens. Repeatedly suppressing the urge to go trains your rectum to tolerate more fullness before signaling, which can gradually lead to chronic constipation.
Fix Your Toilet Posture
Standard sitting toilets put your body at a mechanical disadvantage. When you sit upright, a sling-like muscle around your rectum keeps the passage kinked at an angle of about 80 to 90 degrees. That kink is useful for continence, but it works against you when you’re trying to go.
Squatting opens that angle to roughly 100 to 110 degrees, straightening the rectum and letting stool pass with less effort. You don’t need to squat on the floor. A simple footstool (about 7 to 9 inches tall) placed in front of your toilet, with your body leaned slightly forward, mimics the effect. In one study, using a footstool cut average time on the toilet nearly in half, from about 113 seconds down to 56 seconds. Participants also reported significantly less straining.
Move Your Body Regularly
Aerobic exercise stimulates the muscles lining your intestines. As your heart rate and breathing increase, your gut contracts more rhythmically, pushing contents along. You don’t need intense workouts. A 20- to 30-minute walk, bike ride, or light jog most days of the week is enough to make a measurable difference in how often you go. Even a short walk after a meal can amplify the gastrocolic reflex and speed things up.
Sedentary lifestyles are one of the most common and overlooked contributors to sluggish digestion. If you sit at a desk all day, even brief movement breaks every hour or two can help keep your colon active.
Consider Probiotics
Certain probiotic strains can increase how often you have a bowel movement, though results are strain-specific. The two with the strongest evidence for constipation are Bifidobacterium lactis and Lactobacillus casei Shirota. B. lactis has been shown across multiple studies to increase the number of bowel movements per week. L. casei Shirota goes further, improving stool consistency while also reducing pain, straining, bloating, and that frustrating feeling of incomplete evacuation.
These strains are found in specific yogurt brands and supplement products. Generic “probiotic blend” labels without named strains are less likely to deliver targeted results. Look for the specific strain designation on the label.
Over-the-Counter Laxatives
When lifestyle changes aren’t enough on their own, several types of laxatives can help. They work through different mechanisms, and choosing the right one depends on your situation.
- Bulk-forming laxatives (like psyllium) hold fluid in the stool, adding weight and softness. These are the closest to a natural dietary fix and are safe for daily, long-term use.
- Osmotic laxatives (like polyethylene glycol or milk of magnesia) draw water into the bowel, softening stool and stimulating movement. These are effective for occasional use and generally well tolerated.
- Stool softeners (like docusate) lower the surface tension of stool so water can penetrate it. They’re mild but less effective than osmotic options for most people.
- Stimulant laxatives (like bisacodyl or senna) directly trigger the nerves in your colon wall, increasing contractions and fluid secretion. These work quickly but are best reserved for occasional use rather than daily reliance.
Mineral oil acts as a lubricant, coating stool so it slides through more easily. It’s useful in the short term but not ideal as a regular solution because it can interfere with the absorption of fat-soluble vitamins.
Know Your Baseline With the Bristol Stool Chart
A quick way to gauge whether your digestion is on track is to check your stool against the Bristol Stool Chart, a seven-point visual scale used in clinical practice. Types 1 and 2 (hard lumps or lumpy sausage shapes) indicate constipation. Types 3 and 4 (sausage-shaped with surface cracks, or smooth and soft like a snake) are the ideal range. Types 5 through 7 (soft blobs, mushy pieces, or liquid) point toward diarrhea. If you’re consistently passing Type 1 or 2 stools, your colon is absorbing too much water and you’ll benefit most from increasing fiber, fluids, or both.
Signs That Something Else Is Going On
Most infrequent bowel movements respond to the changes above. But certain symptoms suggest a cause that needs medical evaluation: blood in your stool, unintended weight loss of 10 pounds or more, iron deficiency anemia, stools that become noticeably thinner in diameter, or constipation that starts suddenly in your 50s or later without an obvious explanation like a new medication or dietary change. A family history of colon cancer also lowers the threshold for getting checked. These don’t necessarily mean something serious, but they warrant investigation rather than more fiber.