Characterized by symptoms like abdominal pain, bloating, diarrhea, and constipation, IBS is one of the most common reasons people visit gastroenterologists. Although there is no cure for IBS, various lifestyle changes and medications can help relieve the symptoms. Your healthcare provider will give you suggestions and prepare a treatment plan, which can include a change of eating habits and increased physical activity.
Sometimes probiotic usage may also help manage IBS symptoms depending on specific bacterial strains used and individual health. We have prepared this article on how to identify the best probiotics for IBS that may potentially help alleviate symptoms and give you an overview of some of our top picks.
Best probiotics for IBS: a shortlist
- Routine — best women’s probiotic for GI symptoms
- Ritual — best probiotic for occasional diarrhea and IBS
- Unbloat — best women's probiotic for bloating
- Oweli — best budget-friend probiotic for IBS management
- Biotics 8 — best men’s multi-strain probiotic for IBS
- YourBiology — best probiotic for IBS with vitamin D
- VSL#3 — best probiotic for IBS with large CFU count
Comparing the best probiotics for IBS
| Provider | Cost (per month) | Daily dose | Probiotic strains | CFU count |
| Routine | $39.95 | 1 capsule | 5 | 24 billion |
| Ritual | $54.00 | 1 capsule | 2 | 11 billion |
| Unbloat | $43.99 | 2 capsules | 7 | 25 billion |
| Oweli | $29.99 | 2 capsules | 4 | 40 billion |
| Biotics 8 | $64.99 | 2 capsules | 10 | 20 billion |
| YourBiology | $64.99 | 2 capsules | 10 | 20 billion |
| VSL#3 | $59.36 | Determined by doctor | 8 | 112.5 billion |
Best probiotics for IBS in 2024: an overview
Although most brands promote their probiotic supplements highlighting similar benefits, the composition of each supplement differs. This could mean that you may notice different effects depending on the formulation and dosage of each supplement. For this reason, we have labeled each product under a specific category emphasizing its unique benefits, ingredients, and other features. We encourage discussing any supplementation with your healthcare provider to make sure you are taking the most suitable one.
1. Routine — best women’s probiotic for GI symptoms
Amazon — 4.2 ⭐⭐⭐⭐
Trustpilot — no reviews
Formulated for women, Routine Prebiotic + Probiotic For Her is made to address gut health issues, including gas, bloating, and constipation.
Key ingredients
One serving of the supplement contains 24 billion CFUs of probiotics at the time of manufacturing. It includes 5 bacterial strains, including Bifidobacterium lactis HN019 and Lactobacillus rhamnosus HN001, which have shown scientific evidence to support gastrointestinal health. For further support, the product contains chicory root extract, which functions as a prebiotic and feeds the “beneficial” bacteria.
For possible stress management, the product contains ashwagandha root extract.
What sets Routine apart
Routine Prebiotic + Probiotic For Her is free from gluten, vegan-friendly, non-GMO, and free of major allergens. The brand also follows GMP standards and meets Health Canada regulations for safety and quality standards.
What did users like?
According to reviews on the official website and Amazon, many customers appreciated this supplement for its digestion aid, reduction of bloating, and improved bowel movement regularity. A portion of reviewers noted benefits for their vaginal health. Some customers also pointed out that the pills are easy to swallow.
What did users dislike?
Some users report that their pills came cracked with the powder loose in the package. Moreover, some people experienced side effects, including bloating and upset stomach. Lastly, a few disappointed buyers claim not to notice any differences after using this product.
Our verdict
Routine Prebiotic + Probiotic For Her is a well-rounded supplement that offers a targeted approach to women's gastrointestinal and overall health. With its blend of clinically-supported probiotic strains, it may address common IBS issues like bloating, gas, and irregular bowel movements while also potentially contributing to vaginal health.
Priced at $39.95 for a one-month supply, Routine offers discounts for longer subscriptions and a money-back guarantee, making it a cost-effective option for daily health maintenance.
2. Ritual — best probiotic supplement for occasional diarrhea and IBS
Amazon — 4.1 ⭐⭐⭐⭐
Trustpilot — 1.5 ⭐
Synbiotic+ by Ritual combines prebiotics, probiotics, and postbiotics in one product and is formulated to potentially reduce occasional diarrhea and other IBS symptoms.
Key ingredients
Ritual includes two strains that have been clinically studied: Lactobacillus rhamnosus GG (LGG) and Bifidobacterium lactis (BB-12). LGG, in particular, has been studied for IBS. For instance, a clinical trial comparing the LGG and low FODMAP diet has found both of these approaches effective in managing IBS symptoms, especially in IBS-D (with frequent loose stools) and IBS-M (both constipation and diarrhea) subtypes. The clinical trial included 123 IBS patients, the majority of whom were females.
What sets Ritual apart
One notable feature of this supplement is its delayed-release capsule, which protects it from stomach acid. This means the capsule dissolves in the small intestine instead of the stomach.
Moreover, Synbiotic+ is third-party tested for label accuracy. The company is also transparent about what is in the supplement, where the ingredients come from, and why they are used.
What did users like?
As noted on both Amazon and the official Routine website, Synbiotic+ main benefits, according to the customers, include potential reduction of bloating and stomach pain, and improvements in overall gut health. The reduction of episodes of diarrhea was also mentioned in the reviews.
What did users dislike?
Several reviewers on Trustpilot expressed disappointment with the customer service team. Buyers were complaining about issues with refunds, subscriptions, and late deliveries. A few customers on Amazon also mentioned the supplement jar to be broken upon arrival.
Our verdict
Synbiotic+ may be worth considering for those seeking relief from certain occasional IBS symptoms, including diarrhea. The transparency of the brand and delayed-release capsule makes this product one of the most sought-after probiotics on the market.
Currently, the price for a one-month supply of Ritual is $54. The product is sold only on a subscription basis and includes free shipping.
3. Unbloat – best women's probiotic for bloating
Amazon — 3.7 ⭐⭐⭐
Trustpilot — No reviews
Unbloat Daily Capsules is a product crafted to support the reduction of persistent bloating and, as per the brand's suggestion, it may be particularly effective for bloating caused by periods and menopause.
Key ingredients
Each serving delivers 25 billion CFU of probiotics together with a wide range of other ingredients for digestion, including various herbs.
Ubloat is vegetarian, gluten-free, and non-GMO.
What sets Unbloat apart
Unbloat is a comprehensive supplement that includes a wide range of ingredients besides probiotics, such as digestive enzymes, and herbs, such as fennel seed and ginger root extract. According to the manufacturer, it has been formulated by a doctor and tailored for women’s health.
What did users like?
According to Amazon and the official website reviews, the main potential benefit of this supplement is reducing bloating. This was also expressed by individuals with IBS. Others noted the product might be helpful for overall gut health, with improvement in stomach pain and digestion. A few people also mentioned increased natural energy levels after incorporating Unbloat into their routine.
What did users dislike?
Several users reported side effects such as constipation and upset stomach. Other negative reviews mentioned that the product did not deliver the expected results. A few people had issues with deliveries.
Our verdict
If bloating is your main concern, Unbloat stands as a captive option with a comprehensive formula for digestion and gut health.
Unbloat Daily Capsules are priced at $59.99 for a one-time purchase, but discounts are available for monthly and quarterly subscriptions.
4. Oweli — best budget-friendly probiotic for IBS
Amazon — Not available
Trustpilot — No reviews
Oweli Probiotic is a comprehensive supplement formulated to assist gut health, supporting digestion and the immune system’s function.
Key ingredients
The supplement contains 40 billion CFUs of beneficial probiotic strains per serving. The capsules of Oweli were made applying MAKtrek® Bi-Pass Technology for enhanced efficiency. The product also contains prebiotics.
What sets Oweli apart
The product is made under strict cGMP standards and is third-party tested for quality.
What do users have to say?
The product does not have any customer reviews online.
Our verdict
If you are on a tighter budget, Oweli stands out for its lower price compared to other products on this list. Additionally, it has a more minimalistic formula containing probiotics and prebiotics only.
Currently, the product is retailed at $29.99 per bottle. Moreover, the brand provides its buyers with a 100-day money-back guarantee.
5. Biotics 8 — best men’s multi-strain probiotic for IBS
Amazon — Not available
Trustpilot — 2.7 ⭐⭐
Biotics 8 is a probiotic supplement that is tailored to men's health. As per the manufacturer's website, this supplement may help reduce IBS symptoms, improve digestion, and strengthen the gut-brain axis.
Key ingredients
From probiotics, Biotics 8 includes a wide range of strains, including Bifidobacterium bifidum, Lactobacillus plantarum, Lactobacillus rhamnosus, Saccharomyces boulardii that have been demonstrated in clinical studies to support gut health.
What sets Biotics 8 apart
The Biotics 8 probiotic supplement is made in the United States following GMP guidelines, ensuring it adheres to the manufacturing standards set by the FDA.
What do users have to say about this product?
At the moment, there is a very limited amount of Biotics8 reviews online.
Our verdict
Biotics 8 could be an option for men seeking a multi-strain probiotic. However, buyers should be aware that, at the moment, the product has not gathered a lot of customer reviews online.
A one-month supply of the supplements is retailed at $64.99 (2.16 per serving). Buying in bulk reduces the overall price per serving, with a three-month supply costing $129.99 ($1.44) and a five-month supply costing $194.99 ($1.30).
6. YourBiology — best probiotic for IBS with vitamin D
Amazon — Not available
Trustpilot — 3.7 ⭐⭐⭐
YourBiology is recognized as a supplement for IBS due to its potential to support digestion and address issues such as bloating, cramping, and flatulence.
Key ingredients
One serving of YourBiology contains 20 billion CFU from 10 different strains. Additionally, it includes three types of digestive enzymes to further support your digestive system.
What makes YourBiology unique in this list is the addition of vitamin D, which is linked to digestive and overall health. While research results vary, supplementing with vitamin D might help lessen IBS symptoms, as some studies suggest that individuals with IBS might have lower levels of vitamin D.
What sets YourBiology apart
YourBiology is GMP-certified and made in the USA, indicating that it adheres to the regulations enforced by the FDA.
What do users have to say about this product?
As of now, there are very limited customer reviews on YourBiology. Some Trustpilot reviewers indicated that the product met their expectations and helped with their gut health support. One reviewer noted the customer support to be unsatisfactory.
Our verdict
YourBiology stands out for its combination of high CFU count, multiple probiotic strains, and the inclusion of vitamin D, which may provide added potential benefits for digestive health. However, buyers should be aware that YourBiology has not received a lot of reviews online.
A one-month supply of YourBiology supplements costs $64.99, a three-month supply (with one month free) for $129.99, and a five-month supply (with two months free) for $194.99.
7. VSL#3 — best probiotic for IBS with large CFU count
Amazon — 4.5 ⭐⭐⭐⭐
Trustpilot — No reviews
VSL#3 is a high-potency probiotic supplement that is held to a higher standard as a Medical Food. The manufacturer implores consulting with a doctor to determine the appropriate dose and usage schedule.
Key ingredients
The product is made using 8 complementary multi-strain probiotic strains from 3 different genera, including Lactobacillus, Bifidobacterium, and Streptococcus.
The product contains 112.5 billion CFU per serving.
What sets VSL#3 apart
The high-dose formulation is a key differentiator for VSL#3. Moreover, this product has been clinically tested for conditions such as ulcerative colitis and irritable bowel syndrome.
What did users like?
Amazon reviewers noted this supplement to be helpful for their gut health. Benefits such as more regular bowel movements and reduction of bloating were noted by the customers. Users also appreciated that the product arrived in a temperature-controlled package.
What did users dislike?
Some reviewers mentioned that customer service was unhelpful. Moreover, a few customers explained that the steep price point is a deal-breaker, making them refuse to repurchase the product.
Our verdict
If you are willing to spend on probiotics, VSL#3 offers a clinically tested option. However, due to its high strength, you should consult your primary doctor before purchasing this product.
The pricing options for this supplement include one-time purchases at $65.95 or subscription-based purchases at $59.36 per bottle, with delivery options ranging from 30 to 120 days.
How we compiled our list of the best probiotics for IBS in 2024
Below, you can find some of the key factors we looked at while choosing the best probiotic for IBS. This can also serve as a guide for you when you are analyzing any probiotic supplement on the market.
- Probiotic strains. We sought probiotic strains that have been clinically studied in managing common IBS symptoms. For example, these strains include the Lactobacillus genus, especially Lactobacillus plantarum.
- Reputation. We sought reputable brands with a track record of high-quality supplements. For our analysis, customer reviews offered valuable insights into user satisfaction, aiding us in assessing the reliability and trustworthiness of each brand.
- Effectiveness. We picked products with scientifically backed ingredients. Our goal was to present probiotics that genuinely benefit users based on current scientific knowledge.
- Quality. We prioritized supplements formulated to the highest standards. For instance, we preferred products manufactured under Good Manufacturing Practices (GMP) and subjected to third-party testing to ensure purity, potency, and accurate labeling.
What is IBS?
Irritable Bowel Syndrome (IBS) is one of the most common gastrointestinal disorders. It is characterized by a combination of symptoms such as abdominal discomfort, bloating, gas, and changes in bowel movements, including diarrhea, constipation, or both. This condition is chronic and requires long-term management, with no cure available as of now. However, IBS patients are encouraged to make various lifestyle changes to ease their symptoms and can take medication for flare-ups.
IBS is regarded as a functional disorder. This means that the digestive tract appears normal but does not function properly, causing the aforementioned symptoms. The exact cause of IBS remains unknown. Certain factors, e.g., muscle contractions in the intestine and heightened sensitivity of the nerves in the gastrointestinal tract, are considered potential contributors.
As there are no specific laboratory or imaging tests available for diagnosing IBS, diagnosis is primarily based on symptoms and medical history. Your doctor will rule out other possible causes if you are experiencing the IBS symptoms before diagnosing you with IBS. You should always contact your healthcare provider if you suspect to have IBS as it is crucial to rule out other possibilities.
Types of IBS explained
In academic literature, you will find that IBS is classified into a few types. Although IBS subtypes may slightly differ between sources, these are commonly recognized categories. Your doctor will determine your type to prepare the most appropriate management plan.
IBS-C
IBS with constipation (IBS-C) is marked by abdominal discomfort, bloating, and challenging bowel movements. People with IBS-C often have hard or lumpy stools, accounting for at least 25% of their bowel movements. On the other hand, fewer than 25% of their stools are loose. This condition can make bowel movements less frequent, and they might have to strain or push harder when trying to pass stools.
IBS-D
IBS with diarrhea (IBS-D) is characterized by stomach discomfort and a sudden, urgent need to go to the bathroom. Individuals with IBS-D tend to have frequent bowel movements, resulting in loose or watery stools. On days when bowel movements are irregular, over 25% of stools are loose, while less than 25% appear hard or lumpy. Another prevailing symptom of IBS-D is excessive gas.
IBS-M
IBS-M, or mixed-type IBS, is a form of IBS where a person experiences both constipation and diarrhea. To be diagnosed with IBS-M, each type of stool must occur at least 25% of the time.
Benefits of probiotics for IBS
Probiotics have been clinically studied for their potential benefits in managing symptoms of IBS. Although research is still ongoing, primary data suggests that probiotics may have these benefits for those with IBS:
- Abdominal discomfort relief. Some probiotic strains are associated with improvements in abdominal pain symptoms. As an example, in a clinical trial, the strain Lactobacillus plantarum decreased the frequency and severity of abdominal pain compared to a placebo. Other probiotic strains, such as Saccharomyces cerevisiae, have also demonstrated potential in alleviating abdominal pain.
- Bloating and gas reduction. Due to excess gas production and increased sensitivity, people with IBS may experience bloating. Although the evidence is still limited, certain probiotics — including Lactobacillus plantarum — have shown the potential to lessen bloating symptoms. More research is needed to validate the effectiveness of probiotics in relieving bloating and gas in IBS patients.
- Diarrhea management. Probiotics may play a role in easing diarrhea symptoms associated with IBS as have shown in various studies. Specific strains, such as Saccharomyces boulardii, have been investigated for their potential to prevent diarrhea and enhance intestinal barrier function.
Possible side effects of probiotics for IBS
Most probiotic supplements are sourced from fermented foods; therefore, they are considered to be safe for the overall healthy population. However, it is crucial to be mindful of potential side effects. Some people, especially when introduced to the probiotic supplement for the first time, may experience temporary symptoms like:
- Gas
- Bloating
- Diarrhea
- Allergic reactions
- Headaches
- Infections
The symptoms, such as gas, bloating, or diarrhea, usually resolve on their own after your body adjusts to the probiotics. If they do not, discontinue taking the product and consult your healthcare provider.
Keep in mind that not everyone should be taking probiotics. For instance, individuals with compromised immune systems are discouraged from probiotic usage as there have been some reports of infections associated with probiotic use.
When should I start using probiotics for IBS?
The ideal time to begin using probiotics for IBS can differ based on individual needs.
It's best to consult with a healthcare professional, such as a doctor or registered dietitian before starting probiotics for IBS. They will assess your specific situation and advise you on the appropriate timing to start probiotics, as well as help you select the most effective strain, dose, and formulation for your goals.
Explore other probiotic products and benefits
Best probiotics for men’s gut health may improve the digestive system.
Best probiotics for SIBO may be included in managing SIBO development.
Best probiotics for women may support digestive and vaginal health.
Best probiotics to lose weight can help reduce belly fat.
Best probiotics for constipation may increase bowel movements.
Best probiotics for bloating may decrease gas buildup in your gastrointestinal tract.
Best supplements for IBS will provide you with a wide range of options to help manage IBS symptoms.
FAQ
How quickly do probiotics work for IBS?
The effectiveness and duration of probiotics for IBS vary. Consistent use for several weeks is often recommended by the manufacturers to see benefits. It is best to consult a healthcare professional for personalized guidance on probiotic supplementation for IBS.
Should people with IBS take prebiotics or probiotics?
The use of prebiotics and probiotics for people with IBS is a topic that requires further research. While some studies suggest that specific probiotic strains, such as Bifidobacterium infantis, may alleviate IBS symptoms, the overall evidence is inconsistent. Similarly, the role of prebiotics in IBS management remains unclear.
Who should not take probiotics?
Individuals who have compromised immune systems or are critically ill should exercise caution when considering probiotics, as there have been rare reports of infections associated with probiotic use in these populations. It is advisable for these individuals to consult with healthcare professionals before starting probiotic supplementation.
11 resources
- Gastroenterology Review. Probiotics in irritable bowel syndrome – is the quest for the right strain over? Rapid review of existing guidelines and recommendations.
- Current Gastroenterology Reports. Brain and gut interactions in irritable bowel syndrome: new paradigms and new understandings.
- World Journal of Gastroenterology. Clinical trial: Lactobacillus plantarum 299v (DSM 9843) improves symptoms of irritable bowel syndrome.
- World Journal of Gastroenterology. Saccharomyces cerevisiae I-3856 in irritable bowel syndrome with predominant constipation.
- Engineering. Lactobacillus plantarum CCFM8610 alleviates irritable bowel syndrome and prevents gut microbiota dysbiosis: a randomized, double-blind, placebo-controlled, pilot clinical trial.
- Cureus. Probiotics in irritable bowel syndrome: a review of their therapeutic role.
- Therapeutic Advances in Gastroenterology. Efficacy and safety of the probiotic Saccharomyces boulardii for the prevention and therapy of gastrointestinal disorders.
- BMC Complementary Medicine and Therapies. Infectious complications following probiotic ingestion: a potentially underestimated problem? A systematic review of reports and case series.
- Nutrients. Probiotics in irritable bowel syndrome: an up-to-date systematic review.
- Current Medical Research and Opinion. Efficacy of Bifidobacterium infantis 35624 in patients with irritable bowel syndrome: a meta-analysis.
- Clinical Infectious Diseases. Risk and safety of probiotics.
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