--- title: "Is Your Digestion Normal? What the Research Actually Says" entity: "blog" canonical_url: "https://www.drerinley.ca/blog/is-your-digestion-normal-what-the-research-actually-says" markdown_url: "https://www.drerinley.ca/llms/blog/is-your-digestion-normal-what-the-research-actually-says" lastmod: "2026-04-14T21:35:00.000Z" --- Let’s be honest: most of us have quietly wondered whether what’s happening in our gut is normal — but haven’t quite known who to ask. Maybe you’ve assumed everyone deals with bloating after meals, or that going three days without a bowel movement is just your normal. Or maybe you’ve brushed off symptoms that have been nagging at you for years. You’re not alone in this. And you deserve clear answers, not vague reassurances. Let’s talk about what the research actually says about healthy digestion, what you can let go of worrying about, and when it’s worth paying attention. What Does “Normal” Digestion Actually Look Like? Bowel Movement Frequency: The 3-and-3 Rule There’s a useful guideline in gastroenterology research called the “ 3 and 3” rule: healthy bowel movement frequency ranges from 3 times per week to 3 times per day . A large U.S. study found that 95.9% of healthy adults fall within this range. So if you’re going once a day, twice a day, or every other day — all of that can be perfectly normal. Where you fall on that spectrum is largely shaped by diet, hydration, movement, hormones, and stress — not a personal failing. Interestingly, research also shows that women tend to have slightly less frequent bowel movements than men and may pass harder stools. Worth knowing so you stop comparing yourself to someone else’s bathroom habits. Stool Consistency: The Bristol Stool Form Scale Consistency matters as much as frequency. The Bristol Stool Form Scale is a 7-type clinical guide: - Types 1–2: Hard, lumpy, difficult to pass — signs of slow transit - Types 3–5: Normal range. Type 4 is ideal — smooth, soft, sausage-shaped - Types 6–7: Loose or watery — signs of fast transit If you’re landing in the Type 3–5 zone most of the time, your gut is doing exactly what it should. Gas, Bloating, and Other Occasional Symptoms Here’s something that might surprise you: in a study of over 53,000 healthy people, 68% reported at least one GI symptom , with bloating and abdominal rumbling each affecting 40% of participants. Gas and bloating are extremely common. Research also shows that healthy adults regularly experience: - Urgency (36%) - Straining (47%) - Sensation of incomplete evacuation (46%) Experiencing these things occasionally does not mean something is wrong with you. What About Abdominal Pain? Mild, intermittent abdominal discomfort — especially around meals or bowel movements — can be completely normal. The key words: mild and intermittent. Persistent or severe pain is a different story. When to Pay Attention: Symptoms That Warrant a Conversation Some symptoms signal it’s time to seek evaluation. Please reach out to a healthcare provider if you notice: - Unintentional weight loss (greater than 10% of body weight) - Rectal bleeding not from hemorrhoids - Persistent vomiting - Severe or worsening abdominal pain - New onset of symptoms after age 50–60 - Diarrhea that wakes you from sleep - Family history of colorectal cancer or inflammatory bowel disease - Iron deficiency anemia - A notable recent change in bowel habits Even without these red flags: if you’ve had chronic symptoms for 6+ months that are affecting your quality of life, that’s worth exploring. Conditions like IBS are very common — and very treatable. Colorectal Cancer Screening: Don’t Skip This Digestive health isn’t just about how you feel day to day. Colorectal cancer is one of the most preventable cancers, and regular screening is one of the most powerful things you can do for your long-term health. The good news? Screening in Ontario is simple and covered. Ontario Guidelines (ColonCancerCheck) Ontario’s organized screening program uses the Fecal Immunochemical Test (FIT) — a simple at-home stool test: - Ages 50–74 (average risk): FIT test every 2 years - Age 75+ : Screening generally not recommended The FIT test is more accurate than the older guaiac-based test, easier to complete, and requires no dietary restrictions beforehand. If You Have a Family History — Earlier Screening Matters - 2+ first-degree relatives with colorectal cancer: Colonoscopy every 5 years, starting at age 40 (or 10 years before the youngest affected relative’s diagnosis) - 1 first-degree relative with colorectal cancer: Colonoscopy every 5–10 years starting at age 40–50 - Family history of advanced polyps: Colonoscopy or FIT starting at age 40–50 If any of this applies to you, please bring it up at your next appointment. A note on screening age: There is growing momentum in Canada to lower routine screening from age 50 to 45. A Canadian modelling study estimated this change could prevent over 12,000 colorectal cancer cases and 5,000 deaths over 40 years. Ontario’s guidelines still begin at age 50 as of 2026, but this is actively being reviewed. If you’re between 45–49 and have concerns, it’s worth a conversation. Taking Control: Simple Starting Points - Hydrate consistently — aim for at least 8 cups of non-caffeinated fluid daily - Move your body — regular physical activity supports gut motility - Eat at regular times — your gut thrives on rhythm - Reduce gut irritants — reduce caffeine (max 3 cups/day), alcohol, and carbonated drinks - Watch artificial sweeteners — sorbitol and mannitol (found in sugar-free products) can contribute to bloating and diarrhea - Mind your fibre — soluble fibre (psyllium, oats, linseeds) supports regularity; insoluble fibre (bran) can worsen bloating for some people - Get your FIT test — if you’re 50–74 and haven’t done it recently, now is a good time Already My Patient? Let’s Talk About Your Gut If you’ve been seeing me for other concerns — PMS, acne, hormone therapy, sleep, energy, ADHD — and you’ve quietly been dealing with digestive struggles on the side: hey, did you know I treat digestion too? Gut health is deeply connected to hormones, mood, energy, and so much more. You don’t need to manage it separately or wait until it becomes a bigger problem. If bloating, constipation, loose stools, or other digestive symptoms have been on your mind, bring them up at your next visit — or [book a focused appointment](https://clarityhealthburlington.janeapp.com/locations/clarity-health-burlington/book#/staff_member/5) to address them directly. You deserve to feel good in your body, from the inside out. You’re Not Doing Anything Wrong Digestive symptoms are some of the most common — and most under-discussed — health concerns people live with. Many people quietly suffer for years assuming it’s just the way things are. It doesn’t have to be that way. Whether you’re trying to figure out if your symptoms are normal, ready to take action on something long-standing, or just overdue for colorectal screening — support is available. If you’re a patient at Clarity Health in Burlington and have questions about your digestion, book an appointment. I’d love to help you understand what your gut is telling you — and what we can do about it. References 1. Mitsuhashi S, et al. Am J Gastroenterol. 2018;113(1):115–123. 2. Kalyta A, et al. JAMA Oncol. 2023;9(10):1432–1436. 3. Heaton KW, et al. Gut. 1992;33(6):818–24. 4. Grosen AK, et al. BMJ Open Gastroenterol. 2025;12(1):e001518. 5. Panigrahi MK, et al. J Neurogastroenterol Motil. 2013;19(3):374–80. 6. Moshiree B, Drossman D, Shaukat A. Gastroenterology. 2023;165(3):791–800. 7. Wilkinson JM, et al. Am Fam Physician. 2019;99(5):301–309. 8. Lacy BE, et al. Clin Gastroenterol Hepatol. 2021;19(2):219–231. 9. Black CJ, et al. Lancet. 2020;396(10263):1664–1674. 10. Ford AC, et al. Lancet. 2020;396(10263):1675–1688. 11. Goede SL, et al. PLoS One. 2017;12(3):e0172864. 12. US Preventive Services Task Force. JAMA. 2016;315(23):2564–2575. 13. Issaka RB, et al. Gastroenterology. 2023;165(5):1280–1291. 14. Skulsky SL, et al. Can J Surg. 2025;68(4):E313–E324.​​​​​​​​​​​​​​​​