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Evidence on probiotics for bloating is mixed and depends on the exact strain. A few specific strains reduced bloating in trials of people with irritable bowel syndrome (IBS), while others did nothing, and almost no research has tested probiotics for occasional bloating in otherwise healthy people. The American Gastroenterological Association (AGA) said in 2023 that it does not recommend probiotics for bloating or distention. Starting a probiotic can also cause extra gas for a while. This guide explains what the strain-level studies found, what a probiotic for gas and bloating actually contains, and when bloating needs a doctor rather than a supplement.
Peptide Labs sells probiotics, and we mention three below. This article is general information, not medical advice.
Key Takeaways
- U.S. gastroenterology groups do not recommend probiotics for bloating or for overall IBS symptoms.
- A few named strains reduced bloating in IBS trials; results did not carry over to other strains.
- Most studies enrolled people with IBS, not people with occasional bloating.
- Gas can increase during the first days of a new probiotic, especially with added inulin or FOS.
- Bloating with weight loss, pain, bowel changes or sudden new symptoms needs a doctor.
Probiotics for bloating: what the guidelines say
Three U.S. positions set the baseline. The AGA’s 2023 clinical practice update on belching, bloating and distention states plainly that probiotics are not recommended for bloating or distention. The AGA’s 2020 probiotic guideline advised using probiotics for IBS only within clinical trials, because the evidence was weak. The American College of Gastroenterology’s 2021 IBS guideline suggested against probiotics for overall IBS symptoms, rating the evidence very low quality.
A European primary care consensus is more positive. Its 2018 review of 70 trials found moderate evidence, with 75% expert agreement, that specific probiotics help reduce bloating in some people with IBS. It named particular strains rather than probiotics in general, noted that many newer studies found no benefit, and was supported by an unrestricted grant from Danone, which sells one of the strains it cited.
Strains that have been studied for bloating and gas
Probiotic effects are tied to the genus, species and strain code, such as Bifidobacterium infantis 35624. These are some of the trials most often cited:
| Study | Strain | Who took part | What happened | Caveats |
|---|---|---|---|---|
| Whorwell et al., 2006 | B. infantis 35624 | 362 women with IBS, 4 weeks | One of three amounts beat placebo for pain, bloating and gas | The other two amounts did not; sponsored by Procter and Gamble |
| Charbonneau et al., 2013 | B. infantis 35624 | Adults with IBS, 8 weeks | No effect on IBS symptoms | Also funded by Procter and Gamble |
| Ducrotte et al., 2012 | L. plantarum 299v | 214 adults with IBS, 4 weeks | Less pain; similar results for bloating | Short, single trial |
| Ringel-Kulka et al., 2011 | L. acidophilus NCFM plus B. lactis Bi-07 | 60 adults with functional bowel disorders, 8 weeks | Bloating improved at 4 weeks; smaller difference at 8 weeks | Small; partly funded by the strain maker |
| Ford et al., 2018 review | Many | 53 trials, 5,545 people with IBS | Could not say which strains work | Side effects no more common than placebo |
The pattern is inconsistent. The same B. infantis strain looked helpful in one sponsor-funded trial and made no difference to symptoms in another, and only one of three amounts worked in the larger study. Reviewers also point out that nearly all of this research enrolled people with diagnosed IBS or other functional bowel disorders, so it says little about occasional bloating after a big meal. A product that lists only a species, such as “L. plantarum,” is not the same as a studied strain like L. plantarum 299v.
Occasional bloating vs a problem to check with a doctor
The National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) describes bloating as a feeling of fullness or swelling in the abdomen. Common sources of gas are swallowed air, from chewing gum, fizzy drinks, eating quickly or smoking, and gut bacteria breaking down carbohydrates that were not fully digested. NIDDK advises seeing a doctor if gas symptoms bother you, change suddenly, or come with abdominal pain, constipation, diarrhea or weight loss, and to talk with a doctor before trying probiotics or other supplements for gas. Our guide to everyday bloating covers food triggers and practical steps.
Why a probiotic for gas and bloating can cause gas at first
The NIH Office of Dietary Supplements (ODS) notes that probiotics may cause gas in healthy people. Many products also add prebiotic fibers such as inulin, chicory root or FOS, which gut bacteria ferment quickly. That can mean more gas in the first days or weeks, and some labels tell users to cut back the serving if gas or bloating occurs. Our guide to when to take probiotics covers timing and how long trials ran.
How to read a probiotic label for bloating
- Full strain name: genus, species and strain code. Without the code you cannot match the product to a trial.
- Count through expiration: a CFU (colony-forming unit) number that holds until the date on the package is more useful than a count at manufacture.
- Added fibers: inulin and FOS may add gas at first.
- Other active ingredients: enzymes, herbs or stimulants change what you are taking.
- Allergens and storage: some capsules contain milk, soy or wheat; some need refrigeration.
Our guide to how to choose a probiotic goes through each point in more depth.
Probiotics we carry that mention bloating
| Product | Strains on the label | Strain codes listed? | Other notable ingredients |
|---|---|---|---|
| FOODOLOGY Coleology Cut Probiotics | L. curvatus HY7601, L. plantarum KY1032, B. animalis subsp. lactis; 10.1 billion CFU | Two of three | FOS, chicory root; contains milk, soy, wheat |
| Physician's Choice Probiotics for Weight Management and Bloating | Six Lactobacillus and Bifidobacterium species; no CFU count listed | No | Green tea extract, apple cider vinegar, cayenne, enzymes, inulin, acacia |
| Metamucil Fiber Gummies with Probiotics | Bacillus coagulans (LactoSpore); 1 billion CFU through the printed date | Branded strain | 5 g inulin and soluble corn fiber; xylitol |
FOODOLOGY Coleology Cut Probiotics is named for bloating, but the published human trials of its two coded strains measured body weight, not bloating. In a 12-week trial of 72 adults with overweight, run mostly by researchers at the strain’s Korean maker, the probiotic group’s weight fell slightly while the placebo group’s rose. Physician’s Choice Probiotics for Weight Management and Bloating lists species without strain codes or a CFU count, so it cannot be matched to the trials above. Metamucil Fiber Gummies with Probiotics pair a spore-forming probiotic with fermentable fiber; our Bacillus coagulans guide reviews that strain’s studies. Compare more labels in our fiber and gut health category.
Who should be careful with probiotics
- People with weakened immune systems or serious illness, who have a higher risk of infection from probiotic microbes, according to ODS and NCCIH.
- Preterm infants: the FDA warned in 2023 about serious risks in hospitalized preterm babies.
- People who are pregnant or nursing, or who take medicines; the labels above say to check first.
- Anyone with milk, soy or wheat allergies should read the capsule ingredients.
Frequently Asked Questions
Do probiotics help with bloating?
Evidence is mixed. A few named strains reduced bloating in IBS trials, but U.S. gastroenterology groups do not recommend probiotics for bloating.
What should I look for in a probiotic for gas and bloating?
The full strain code, a CFU count through expiration, added fibers that may cause gas, allergens and storage directions. Match the strain to published studies if you can.
Can probiotics make bloating worse?
They can at first. Probiotics and added fibers such as inulin can increase gas during the first days or weeks.
How long do probiotics for bloating take to work?
The trials above lasted 4 to 8 weeks. Results depend on the strain, and many products have not been tested at all.
Are probiotics for gas safe?
For most healthy adults, side effects are usually mild, such as gas. People who are seriously ill or immunocompromised face a higher risk of infection.
When should I see a doctor about bloating?
If it bothers you, changes suddenly, or comes with abdominal pain, constipation, diarrhea or weight loss, according to NIDDK.
Probiotics are also marketed for weight; see our guide to probiotics for weight loss. Questions about a label? Contact us or read our Buyer’s Guide. Follow the label and ask a healthcare provider before starting any supplement, especially if you take medicines. These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
Last reviewed September 2026.
Related guides: Best Probiotic? How to Choose a Probiotic by Strain, CFU and Evidence, When to Take Probiotics: Timing, How Long They Take and Side Effects, How to Debloat: Common Causes of Bloating, What Helps and When to See a Doctor, Bacillus Coagulans: The Spore-Forming Probiotic, Its Strains and Safety, Probiotics for Constipation: What the Research Shows, Strain by Strain, Kombucha Benefits: What Human Studies Show, Risks, and Gummies vs the Drink, Peppermint Tea Benefits, Peppermint Oil for IBS and Menthol Safety, Fennel Seeds: Benefits, Fennel Tea, Bloating Evidence and Safety, Bloating After Eating: Common Causes, What Helps and When to See a Doctor.