Yes, Greek yogurt may help constipation for some people, mainly because of the live probiotic bacteria it contains. But it does not have any dietary fiber, so it is not a replacement for fiber-rich foods, and it does not work the same way for everyone.
Constipation affects an estimated 16% of adults worldwide. [9] Many people reach for yogurt as a natural first step before trying laxatives. Greek yogurt is fermented, which means it can carry live beneficial bacteria into the gut. But it also contains dairy protein, fat, and some milk sugar, all of which affect digestion differently from person to person.
This article covers what the research actually says about Greek yogurt for constipation, when it may help, when it can make things worse, how it compares to regular yogurt, and the most practical way to eat it for better bowel movements.
Quick Answer: Greek yogurt may help constipation for some people through its live probiotic cultures. However, the research evidence is mostly from probiotic fermented dairy products broadly, not Greek yogurt specifically. The effect is modest, gradual, and does not work for everyone. It has no fiber, so it works best when eaten alongside fiber-rich foods and plenty of water, not as a standalone remedy.
At a Glance: Best Probiotic Greek Yogurts for Constipation Support
If you’re ready to add probiotic-rich Greek yogurt to your routine, here are the most trusted options with clearly labeled, well-researched strains:
- Best overall (most strains, clearly labeled): Nancy’s Organic Probiotic Greek Yogurt — lists multiple researched strains including Bifidobacterium lactis BB-12 and L. acidophilus LA-5, organic, traditionally strained
- Best classic, minimal-ingredient option: FAGE Total Plain Greek Yogurt — thick and creamy, contains L. acidophilus and Bifidus, no added sugar in the plain variety
- Best widely available pick: Chobani Plain Greek Yogurt — easy to find in most grocery stores, low sugar in the plain version, multiple live active cultures
- Best organic, high-protein option: Stonyfield Organic Greek Whole Milk Yogurt — 16g protein per serving, six live active cultures including Bifidobacterium BB-12, USDA organic, pasture-raised milk
- Best Australian-style, mellow flavor: Wallaby Organic Whole Milk Greek Yogurt — slow-crafted for a smooth, less tangy taste, 15g protein, includes L. acidophilus, L. paracasei, and Bifidus
- Best dairy-free alternative: Siggi’s Plain Plant-Based Yogurt — coconut and macadamia-based, more protein than sugar, live active cultures, well-reviewed for taste and texture, suitable for lactose-sensitive users mentioned in the article
Does Greek Yogurt Help Constipation? What the Research Shows
Greek yogurt is a fermented dairy product made with bacterial strains including Streptococcus thermophilus and Lactobacillus bulgaricus. Many brands also add extra strains such as Bifidobacterium lactis or Lactobacillus acidophilus.
Most research on yogurt and constipation comes from studies on probiotic fermented dairy products broadly, not Greek yogurt in isolation. Here is what the key studies found.
A randomized controlled trial (Mirghafourvand M et al., 2016; PMC5294450) gave probiotic yogurt containing Bifidobacterium and Lactobacillus to 60 constipated pregnant women for 4 weeks. Both the probiotic group and the conventional yogurt group improved over time. The probiotic group showed slightly better results on some symptoms, but the difference between the two groups was not statistically significant in most measures. This suggests that regular yogurt with any live cultures may also offer some benefit, and it is worth being cautious about overstating the advantage of probiotic yogurt over regular yogurt based on this study alone. [1]
A widely cited study (Guyonnet D et al., 2007; PMID: 17635382) followed 274 adults with constipation-type IBS who ate a fermented dairy product containing Bifidobacterium animalis DN-173 010 for 6 weeks. The study found meaningful improvement in bloating and quality of life, and stool frequency increased in the subgroup of participants having fewer than 3 bowel movements per week at the start. [2]
A crossover trial (Tabbers MM et al., 2011; PMID: 21606153) found that a fermented dairy product with Bifidobacterium lactis DN-173 010 increased how often constipated children went to the bathroom, with the most improvement seen in the first treatment phase. [3]
Across three major systematic reviews and meta-analyses covering more than 30 clinical trials combined, probiotic use has been linked to about 0.8 to 1.3 extra bowel movements per week on average, along with a reduction in gut transit time of 12 to 15 hours. These are meaningful but modest numbers, and not everyone responds. [5, 6, 8]
It is important to be clear about what this evidence does and does not show. The studies above involve specific fermented dairy products with named probiotic strains, not Greek yogurt as a general food category. The benefit depends heavily on which bacterial strains are present and whether they are still alive when you eat the yogurt. Direct research on Greek yogurt and constipation, separate from fermented dairy broadly, is limited.
How Probiotic Yogurt May Support Bowel Movements
When Greek yogurt contains live probiotic cultures, it may support regular bowel movements through a few different paths:
Restoring good gut bacteria: Bifidobacterium and Lactobacillus bacteria help restore a healthier balance in the gut. People with chronic constipation often have lower levels of these beneficial bacteria compared to people with regular bowel habits. Our full guide on probiotics and constipation covers this in detail.
Producing short-chain fatty acids: Probiotic bacteria break down fiber residues in the colon and produce compounds called short-chain fatty acids (SCFAs). These soften stool by drawing water into the colon and help the gut muscles push stool forward. [7]
Speeding up gut transit: Several clinical trials on fermented dairy products with B. animalis DN-173 010 showed faster movement of food through the gut. One study (Agrawal A et al., 2009; PMID: 19491831) found this fermented milk reduced bloating and sped up gut transit in people with constipation-type IBS. [4]
Improving the gut environment: Fermentation produces lactic acid, which may create conditions in the gut where good bacteria are more likely to thrive and where the digestive system moves more regularly.
These effects build up slowly over weeks, not overnight. Probiotic yogurt is not a laxative. It will not produce a bowel movement the same day you eat it, and for some people it may not make a noticeable difference at all.
Can Greek Yogurt Make Constipation Worse?
For most people, Greek yogurt is unlikely to make constipation worse and may help over time. But there are specific situations where it can slow digestion or add to existing constipation problems.
1. Lactose Sensitivity and Dairy Intolerance
Greek yogurt has much less lactose than regular milk or regular yogurt. The straining process removes most of the watery whey and the lactose that comes with it. A 200-gram serving of Greek yogurt has roughly 5 to 8 grams of lactose, compared to about 12 grams in a cup of milk.
The live bacteria in yogurt also help break down lactose, which is why many people with mild lactose intolerance handle yogurt better than milk. Even so, people with moderate to severe lactose intolerance may still experience bloating, gas, or digestive slowdown that worsens constipation-like symptoms.
People with a milk protein allergy or sensitivity to casein (the main protein in dairy) may also find that any dairy product slows gut movement, regardless of the lactose content.
2. Low-Fiber Diet
Greek yogurt has zero dietary fiber. If the rest of someone’s diet is already low in fiber from fruits, vegetables, beans, and whole grains, the probiotics in yogurt cannot make up for that gap. Many beneficial gut bacteria use dietary fiber as an important fuel source. Without enough fiber, they cannot do their job well.
In practice, people who eat Greek yogurt as part of a high-protein, low-carbohydrate diet without much fiber may still struggle with constipation. The issue in that case is the overall diet pattern, not the yogurt itself. Adding fiber-rich foods will help more than the yogurt alone.
3. Too Much Dairy Overall
Dairy as a group is linked to constipation risk when eaten in large amounts, especially in children but also in adults. Dairy products have no fiber and are high in protein and fat, both of which slow how quickly the stomach empties. Eating many servings of cheese, milk, ice cream, and yogurt throughout the day can lead to harder, less frequent stools, even when a single serving of probiotic yogurt might otherwise be helpful.
4. Flavored and Heat-Treated Yogurts
Many commercial Greek yogurt products are either heat-treated after fermentation, which kills the live bacteria, or are flavored with added sugars. Diets high in added sugar may negatively affect gut bacteria balance over time, although the effect depends on the overall diet pattern. Either way, a yogurt with high sugar and no live cultures will not provide the probiotic benefit you are looking for.
Always choose products labeled “live and active cultures.” The National Yogurt Association’s Live and Active Cultures seal is a useful guide in the US market.
Greek Yogurt vs. Regular Yogurt for Constipation
Both types can contain live probiotic cultures. Here is how they compare on the factors that matter most for constipation:
| Factor | Greek Yogurt | Regular Yogurt |
|---|---|---|
| Lactose per 200g serving | Approx. 5 to 8g | Approx. 12 to 14g |
| Protein per 200g serving | 15 to 20g | 8 to 10g |
| Live probiotic cultures | Yes, if not heat-treated after fermentation | Yes, if not heat-treated after fermentation |
| Dietary fiber | Zero | Zero |
| Texture | Thick, strained | Thinner, not strained |
| Better for lactose sensitivity | Yes, generally | Less so |
| Probiotic benefit for constipation | Depends on which strains are present | Depends on which strains are present |
For people with mild lactose sensitivity, Greek yogurt is usually the better option because of its lower lactose content. For everyone else, the specific bacterial strains in the product matter more than whether it is Greek-style or regular. Some well-studied strains for bowel movement support include Bifidobacterium animalis (DN-173 010) and Bifidobacterium lactis (BB-12). Not all Greek yogurt products contain these, so checking the label is important.
What to Look for When Buying Yogurt for Constipation
Not all Greek yogurts are useful for gut health. Here is what to check before you buy:
Live and active cultures: The product must contain living bacteria when you eat it. Look for the “Live and Active Cultures” seal, or check the ingredient list for specific strain names.
Named probiotic strains: Labels listing “active cultures” without naming the actual strain give you little certainty. Products that name the strain (for example, Bifidobacterium animalis or Lactobacillus acidophilus NCFM) have real research behind them. Keep in mind that strains like DN-173 010 are not found in most Greek yogurt products and are more common in specific fermented dairy drinks.
Plain and unsweetened: Avoid added sugars, artificial sweeteners, and fruit-flavored fillings. Choosing plain yogurt and adding your own fruit at home gives you control over both the flavor and the sugar content.
Not heat-treated after fermentation: Some yogurts are pasteurized after fermentation to extend shelf life, which destroys the live cultures. These will not provide probiotic benefit even if the label says “made with live cultures.” Look for whether the label says “heat-treated after culturing.”
CFU count: Most Greek yogurts do not list a CFU (colony forming unit) count. This is one reason consistent daily eating over several weeks matters more than any single serving, since the total dose of bacteria builds up over time.
How to Eat Greek Yogurt for Better Digestion and Constipation Relief
How you eat Greek yogurt matters as much as which product you choose.
1. Choose Plain, Unsweetened Greek Yogurt with Live Cultures
Look for products with named probiotic strains and the Live and Active Cultures seal. Avoid flavored varieties. High added sugar in the diet may reduce the numbers of good bacteria in the gut over time, partly canceling out any benefit from the probiotics.
2. Add High-Fiber Toppings
Greek yogurt has no fiber. Pairing it with fiber-rich foods creates a more effective combination for the gut, because fiber acts as fuel for the probiotic bacteria once they reach the colon. This kind of pairing is sometimes called a synbiotic approach.
Good options to add on top:
Berries (raspberries, blackberries, blueberries): Among the highest-fiber fruits, and rich in plant compounds that feed good gut bacteria. One cup of raspberries has about 8 grams of fiber.
Ground flaxseed (1 tablespoon): Adds 2 to 3 grams of fiber plus healthy fats and a natural gel-forming substance that helps stool move more easily. Always use ground flaxseed, not whole seeds, since whole seeds pass through the body largely undigested.
Chia seeds (1 tablespoon, pre-soaked): About 5 grams of fiber per tablespoon. Soak them in a little water for a few minutes before adding to yogurt. They form a soft gel that adds bulk to stool. Drink plenty of water alongside them.
Rolled oats or plain granola: About 4 grams of fiber per half cup. Oats contain a specific type of fiber called beta-glucan that feeds Bifidobacterium bacteria, making them a particularly good match for probiotic yogurt.
Chopped prunes (3 to 4): Adding prunes to Greek yogurt combines two different constipation-relief approaches at once: the probiotic effect from the yogurt and the natural stool-softening sugars in prunes. Prunes have the strongest research evidence of any single food for constipation.
3. Eat It Every Day for at Least 4 to 6 Weeks
Probiotic effects build up gradually in the gut. Most studies that showed improvements in stool frequency ran for 4 straight weeks of daily use. Eating yogurt once in a while is unlikely to make a real difference. Stick with it daily for at least a month before deciding whether it is helping you.
4. Drink Enough Water
Not drinking enough water is one of the most common and most overlooked reasons for hard, difficult-to-pass stools. Aim for at least 8 cups (about 2 liters) a day. This is essential for any diet approach to constipation to work well. More simple daily habits that support bowel regularity are covered in our morning habits guide.
A Simple Daily Yogurt Bowl for Constipation Support
Start with 150 to 200 grams of plain, unsweetened Greek yogurt with live cultures. Add 1 cup of mixed berries, 1 tablespoon of ground flaxseed, 1 tablespoon of pre-soaked chia seeds, and a small handful of rolled oats. Eat it in the morning with a large glass of water.
This combination delivers roughly 12 to 15 grams of fiber alongside the live bacteria in the yogurt, letting the fiber and probiotics work together.
Probiotic Yogurt vs. Probiotic Supplements for Constipation
Probiotic supplements can deliver specific, well-researched bacterial strains at a known daily dose. Yogurt strains vary by brand and product, and the dose per serving is much lower. If Greek yogurt has not helped after 4 to 6 weeks of consistent daily use, a targeted probiotic supplement with a specific strain such as Bifidobacterium lactis HN019 or BB-12 may produce a more predictable result.
Yogurt and supplements are not mutually exclusive. Many people use daily probiotic yogurt as a food habit and add a supplement for extra support. Our roundup of the 9 Best Probiotic Supplements (2026) reviews the most evidence-backed options available.
Other Foods That Help with Chronic Constipation
Greek yogurt is one part of a larger picture. For chronic constipation, combining several evidence-based approaches tends to work much better than relying on a single food.
Prunes: One of the foods with the strongest research evidence for constipation. They contain natural sugars that draw water into the colon, fiber, and plant compounds that stimulate the gut. A 2011 clinical trial found prunes outperformed psyllium husk for stool frequency and stool softness. [10] About 50 grams (7 to 8 prunes) per day is the amount used in most studies. Full detail is in our natural laxatives guide.
Kiwifruit: Two green kiwifruits a day have been shown in a clinical trial to increase bowel movement frequency and reduce bloating, with fewer side effects than psyllium. [11] The enzyme actinidin in kiwifruit helps speed up digestion. It is worth noting that a separate 2023 meta-analysis pooling a small number of kiwifruit trials did not find a significant effect on stool frequency overall, so results can vary by study and by person. More at our best fruits guide.
Psyllium husk: The most researched fiber supplement available. Adding 5 to 10 grams daily with plenty of water addresses the fiber gap that yogurt alone cannot fill. Timing tips are in our fiber supplement timing guide.
Magnesium: Magnesium draws water into the colon to soften stool. In one clinical trial, magnesium oxide at about 1,500 mg per day (commonly taken as 500 mg three times daily) showed a 68% improvement in symptoms compared to 12% in the placebo group. [12] Always check with a doctor before starting magnesium supplements, especially with kidney issues or other medications. Our magnesium supplements guide reviews the best options.
More dietary fiber overall: The average American eats only 10 to 15 grams of fiber per day, well below the recommended 25 grams for women and 38 grams for men. Eating more vegetables, fruits, beans, and whole grains remains the most effective long-term approach to preventing constipation.
When diet and lifestyle changes are not enough, OTC options can provide more reliable short-term relief. Our guide to best OTC laxatives covers the most evidence-backed choices in the US.
When to See a Doctor About Constipation
Diet-based strategies are a reasonable starting point for mild to moderate constipation. But some situations need a doctor’s attention, not a dietary change. See a healthcare provider if constipation comes with any of the following:
- Blood in the stool or on toilet paper
- Unexplained weight loss
- Severe or worsening stomach pain
- No bowel movement for more than 5 days despite dietary changes
- Constipation that started after age 50 with no clear cause
- Family history of colorectal cancer or inflammatory bowel disease
- Constipation that has lasted more than 3 weeks without any improvement
These signs may point to an underlying condition such as a thyroid problem, a structural gut issue, or in rarer cases a colorectal concern that needs proper diagnosis and targeted treatment.
Frequently Asked Questions
Does Greek yogurt help with constipation?
Greek yogurt may help constipation in some people because it contains live probiotic bacteria that support gut health and may improve bowel movement frequency over several weeks of daily use. However, the research evidence comes mostly from probiotic fermented dairy products broadly, not Greek yogurt specifically. The effect is modest and does not work for everyone. It has no dietary fiber, so it works best when paired with fiber-rich foods.
Can Greek yogurt make constipation worse?
In some situations, yes. People with lactose intolerance, dairy sensitivity, or milk protein allergy may find that Greek yogurt slows digestion. Eating a lot of dairy without enough fiber in the rest of the diet may also contribute to harder stools. Flavored yogurts with high added sugar and few live cultures are unlikely to help and may not be good for gut bacteria balance over time.
What is the best yogurt for constipation?
The best yogurt for constipation is plain, unsweetened yogurt with live and active cultures, ideally listing a named probiotic strain such as Bifidobacterium animalis or Lactobacillus acidophilus on the label. Avoid heat-treated products, which kill the beneficial bacteria.
Is Greek yogurt better than regular yogurt for constipation?
Greek yogurt has less lactose than regular yogurt because the straining process removes most of the whey. This makes it easier to tolerate for people with mild lactose sensitivity. For constipation relief, what matters most is whether the product has live, well-studied probiotic strains, not whether it is Greek-style or regular.
How long does it take for yogurt to help constipation?
Most clinical studies ran for 4 weeks of daily use before measuring results. Some people saw improvement within 2 weeks, while others needed 4 to 6 weeks. Probiotic bacteria work slowly by improving gut bacteria balance over time, not like a same-day laxative. Pairing yogurt with fiber-rich foods and drinking enough water may help speed up results.
Does Greek yogurt help with chronic constipation?
Greek yogurt may provide modest support for chronic constipation through its probiotic content. However, the average benefit seen in research reviews is small, roughly 1 extra bowel movement per week, and not everyone responds. Chronic constipation usually needs a combined approach including more dietary fiber, adequate fluids, regular movement, and possibly fiber supplements or medical treatment. Greek yogurt works best as one part of this broader plan.
How should I eat Greek yogurt for better digestion?
Eat plain, unsweetened Greek yogurt with live and active cultures every day. Add high-fiber toppings such as berries, chia seeds, ground flaxseed, or oats. Eat it consistently rather than occasionally, and give it at least 4 weeks before judging whether it is working. Drink enough water throughout the day.
The Bottom Line
Does Greek yogurt help constipation? For some people, yes, gently and gradually, through the live probiotic bacteria it contains. There is promising evidence from probiotic yogurt and fermented dairy studies that Greek yogurt with live cultures may support bowel regularity when eaten consistently over several weeks. [1, 2, 3, 4]
That said, the effect is modest. Research reviews suggest about 1 extra bowel movement per week on average, and not everyone responds. Greek yogurt has zero dietary fiber, is not a laxative, and is unlikely to resolve constipation on its own for someone whose problem is driven by a low-fiber diet or dehydration.
The most effective approach is to use Greek yogurt as part of a broader dietary plan: pair it with high-fiber toppings, eat prunes or kiwifruit alongside it, stay well hydrated, and consider a probiotic supplement if yogurt alone has not helped after 4 to 6 weeks.
For people with lactose sensitivity, Greek yogurt is a better dairy option than regular milk or cheese because of its lower lactose content. For people with moderate to severe dairy intolerance, even Greek yogurt may not be well tolerated, and a dairy-free probiotic supplement may be a more practical choice.
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More From ConstipationRelief.net
- Can Probiotics Help Constipation? What Clinical Trials and Meta-Analyses Show (2026)
- 9 Best Probiotic Supplements 2026: Expert Guide for Gut Health and Immunity
- 15 Best Natural Laxatives for Constipation That Actually Work (2026)
- The 10 Best Fruits for Chronic Constipation (Backed by Science 2026)
- 5 Best Magnesium Supplements for Constipation (2026 Review)
- Best OTC Laxatives for Constipation in the US (Fast and Gentle Options)
- 5 Simple Morning Habits to Relieve Constipation Naturally
- Why Fiber Is Not Working for Your Constipation (And How Probiotics Can Help)
Scientific References
- Mirghafourvand M, Mohammad-Alizadeh-Charandabi S, Asghari-Jafarabadi M, Mohammadi M. The Effect of Probiotic Yogurt on Constipation in Pregnant Women: A Randomized Controlled Clinical Trial. Iran Red Crescent Med J. 2016;18(11):e39870. PMC5294450
- Guyonnet D, Chassany O, Ducrotte P, et al. Effect of a fermented milk containing Bifidobacterium animalis DN-173 010 on the health-related quality of life and symptoms in irritable bowel syndrome in adults in primary care: a multicentre, randomized, double-blind, controlled trial. Aliment Pharmacol Ther. 2007;26(3):475-486. PMID: 17635382
- Tabbers MM, Chmielewska A, Roseboom MG, et al. Fermented milk containing Bifidobacterium lactis DN-173 010 in childhood constipation: a randomized, double-blind, controlled trial. Pediatrics. 2011;127(6):e1392-1399. PMID: 21606153
- Agrawal A, Houghton LA, Morris J, et al. Clinical trial: the effects of a fermented milk product containing Bifidobacterium lactis DN-173 010 on abdominal distension and gastrointestinal transit in irritable bowel syndrome with constipation. Aliment Pharmacol Ther. 2009;29(1):104-114. PMID: 19491831
- Dimidi E, Christodoulides S, Fragkos KC, Scott SM, Whelan K. The effect of probiotics on functional constipation in adults: a systematic review and meta-analysis of randomized controlled trials. Am J Clin Nutr. 2014;100(4):1075-1084. PMID: 25099542
- Ding F, Hu M, Ding Y, Meng Y, Zhao Y. Efficacy in bowel movement and change of gut microbiota on adult functional constipation patients treated with probiotics-containing products: a systematic review and meta-analysis. BMJ Open. 2024;14(1):e074557. DOI: 10.1136/bmjopen-2023-074557
- Dimidi E, Christodoulides S, Scott SM, Whelan K. Mechanisms of Action of Probiotics and the Gastrointestinal Microbiota on Gut Motility and Constipation. Adv Nutr. 2017;8(3):484-494. PMID: 28507013
- Garzon Mora N, Jaramillo AP. Effectiveness of Probiotics in Patients With Constipation: A Systematic Review and Meta-Analysis. Cureus. 2024;16(1):e52013. PMID: 38344565
- Silveira EA, Santos ASACS, Ribeiro JN, Noll M, Rodrigues APS, de Oliveira C. Prevalence of constipation in adults with obesity class II and III and associated factors. BMC Gastroenterol. 2021;21:217. PMC8114515
- Attaluri A, Donahoe R, Valestin J, Brown K, Rao SSC. Randomised clinical trial: dried plums (prunes) vs. psyllium for constipation. Aliment Pharmacol Ther. 2011;33(7):822-828. PMID: 21323688
- Chey SW, Chey WD, Jackson K, Eswaran S. Exploratory comparative effectiveness trial of green kiwifruit, psyllium, or prunes in US patients with chronic constipation. Am J Gastroenterol. 2021;116(6):1304-1312. PMID: 34074830
- Morishita D, Tomita T, Mori S, Kimura T, Oshima T, Fukui H, Miwa H. Senna versus magnesium oxide for the treatment of chronic constipation: a randomized, placebo-controlled trial. Am J Gastroenterol. 2021;116(1):152-161. DOI: 10.14309/ajg.0000000000000942
Medical Disclaimer: The information in this article is for general educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider before making significant dietary changes, especially if constipation is severe, persistent, or accompanied by blood in the stool, unexplained weight loss, or severe stomach pain.
