Small Intestinal Bacterial Overgrowth (SIBO): natural remedies and the evidence behind them
SIBO occurs when bacteria overgrow in the small intestine, causing bloating, gas, and digestive discomfort.
10 options1 graded B1 graded C8 traditional or ungraded
B
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If your focus is on clearing the overgrowth and restoring gut balance, probiotics are live beneficial microorganisms studied specifically for helping the gut clear a bacterial overgrowth and settle related symptoms.
A 2017 meta-analysis in people with SIBO found that probiotics were associated with a significantly higher clearance (decontamination) rate than no probiotics, along with lower breath hydrogen and less abdominal pain. Note the same analysis did not find probiotics prevented SIBO from developing, so this is a support-and-clearance role rather than prevention.
Dose or use Follow product labeling; consult a healthcare practitioner. Strains and doses varied across studies, so there is no single proven regimen.
Key study Meta-analysis (2017, PMID 28267052): Probiotics for Preventing and Treating Small Intestinal Bacterial Overgrowth: A Meta-Analysis and Systematic Review of Current Evidence. Pooling studies in people with SIBO, the probiotics group had a significantly higher SIBO decontamination rate than the non-probiotic group (RR 1.61, 95% CI 1.19-2.17) and lower breath hydrogen; probiotics did not significantly prevent new SIBO.
EvidenceSupported by smaller clinical studies · Centuries of traditional useTime to resultsTypically 2-8 weeksTraditional useLong-standing traditional staple
Caution: Probiotics are generally well tolerated but can temporarily increase gas or bloating when introduced; some clinicians prefer to time them around, rather than during, active SIBO treatment. Start low, and check with your provider first if you are immunocompromised or seriously ill.
Evidence grade not assigned · Traditional use recognised
Traditionally used for gut bacterial balance
Why it may be relevant
If your focus is on reducing bacterial overgrowth and restoring a healthier gut environment, berberine has a long traditional-use history as an antimicrobial herb.
Traditionally used to help inhibit unwanted bacterial growth in the digestive tract and support a more balanced gut microbiome.
Dose or use Follow product labeling; consult a healthcare practitioner.
Key study Traditionally used for this condition; this specific use has not been confirmed in controlled clinical trials.
EvidenceNot yet assessed · We have not reviewed the literature for this oneTime to resultsTypically 4–8 weeksTraditional useRecognised traditional use
Caution: Not recommended during pregnancy; may interact with certain medications — check with your healthcare provider.
Evidence grade not assigned · Traditional use long-standing
Antimicrobial fatty acid used in SIBO protocols
Why it may be relevant
If your focus is on clearing the overgrowth, caprylic acid is a medium-chain fatty acid whose traditional use includes reducing unwanted bacterial and fungal growth in the gut.
A medium-chain fatty acid (from coconut and palm oil) traditionally used for its antimicrobial action; it is a common part of natural gut-rebalancing routines.
Dose or use Follow product labeling; consult a healthcare practitioner.
Key study Traditionally used for this condition; this specific use has not been confirmed in controlled clinical trials.
EvidenceCenturies of traditional use · Human evidence not yet assessedTime to resultsTypically 4-8 weeksTraditional useLong-standing traditional staple
Caution: May cause nausea or loose stools when introduced; start low and check with your provider if you have gut inflammation.
Evidence grade not assigned · Traditional use long-standing
Herbal antimicrobial used to rebalance the gut
Why it may be relevant
If you want to clear the overgrowth, high-allicin garlic is a botanical whose allicin content gives it a long traditional use as an antimicrobial in gut-rebalancing routines.
Traditionally used as an antimicrobial botanical, particularly in herbal approaches to bacterial overgrowth; offered as a distinct option alongside berberine.
Dose or use Follow product labeling; consult a healthcare practitioner.
Key study Traditionally used for this condition; this specific use has not been confirmed in controlled clinical trials.
EvidenceCenturies of traditional use · Human evidence not yet assessedTime to resultsTypically 4-8 weeksTraditional useLong-standing traditional staple
Caution: Whole garlic is high-FODMAP and may worsen bloating; standardized allicin extracts differ. May thin blood and interact with blood-thinning medications.
If your focus is on clearing the overgrowth and restoring gut balance, probiotics are live beneficial microorganisms studied specifically for helping the gut clear a bacterial overgrowth and settle related symptoms.
A 2017 meta-analysis in people with SIBO found that probiotics were associated with a significantly higher clearance (decontamination) rate than no probiotics, along with lower breath hydrogen and less abdominal pain. Note the same analysis did not find probiotics prevented SIBO from developing, so this is a support-and-clearance role rather than prevention.
Dose or use Follow product labeling; consult a healthcare practitioner. Strains and doses varied across studies, so there is no single proven regimen.
Key study Meta-analysis (2017, PMID 28267052): Probiotics for Preventing and Treating Small Intestinal Bacterial Overgrowth: A Meta-Analysis and Systematic Review of Current Evidence. Pooling studies in people with SIBO, the probiotics group had a significantly higher SIBO decontamination rate than the non-probiotic group (RR 1.61, 95% CI 1.19-2.17) and lower breath hydrogen; probiotics did not significantly prevent new SIBO.
EvidenceSupported by smaller clinical studies · Centuries of traditional useTime to resultsTypically 2-8 weeksTraditional useLong-standing traditional staple
Caution: Probiotics are generally well tolerated but can temporarily increase gas or bloating when introduced; some clinicians prefer to time them around, rather than during, active SIBO treatment. Start low, and check with your provider first if you are immunocompromised or seriously ill.
Evidence grade not assigned · Traditional use long-standing
Common nutrient shortfall in long-standing SIBO
Why it may be relevant
If you feel run-down or worried about absorption, B12 is the nutrient most often depleted in SIBO because overgrown bacteria consume dietary B12 before your body can absorb it.
Recognizing a possible B12 shortfall matters because it is a well-documented consequence of SIBO and can cause fatigue, and, if severe, anemia and nerve symptoms.
Dose or use Ask your practitioner about testing B12 levels; supplement only under guidance.
Key study Traditionally recognized as a consequence of this condition; this specific link has not been reframed here from a controlled clinical trial.
EvidenceCenturies of traditional use · Human evidence not yet assessedTime to resultsEnergy may improve over weeks once levels are correctedTraditional useLong-standing traditional staple
Caution: Fatigue and tingling have many causes; confirm a shortfall with testing rather than self-treating.
What kind of help would you rather start with?
Gentle daily supplements that support motility and gut balance
If your focus is on clearing the overgrowth and restoring gut balance, probiotics are live beneficial microorganisms studied specifically for helping the gut clear a bacterial overgrowth and settle related symptoms.
A 2017 meta-analysis in people with SIBO found that probiotics were associated with a significantly higher clearance (decontamination) rate than no probiotics, along with lower breath hydrogen and less abdominal pain. Note the same analysis did not find probiotics prevented SIBO from developing, so this is a support-and-clearance role rather than prevention.
Dose or use Follow product labeling; consult a healthcare practitioner. Strains and doses varied across studies, so there is no single proven regimen.
Key study Meta-analysis (2017, PMID 28267052): Probiotics for Preventing and Treating Small Intestinal Bacterial Overgrowth: A Meta-Analysis and Systematic Review of Current Evidence. Pooling studies in people with SIBO, the probiotics group had a significantly higher SIBO decontamination rate than the non-probiotic group (RR 1.61, 95% CI 1.19-2.17) and lower breath hydrogen; probiotics did not significantly prevent new SIBO.
EvidenceSupported by smaller clinical studies · Centuries of traditional useTime to resultsTypically 2-8 weeksTraditional useLong-standing traditional staple
Caution: Probiotics are generally well tolerated but can temporarily increase gas or bloating when introduced; some clinicians prefer to time them around, rather than during, active SIBO treatment. Start low, and check with your provider first if you are immunocompromised or seriously ill.
If sluggishness and bloating are your main complaints, this soluble fiber has preliminary evidence as an add-on: one clinical trial suggested it may improve results when combined with antibiotic treatment, possibly by supporting gut transit.
One clinical trial found that adding it to antibiotic treatment was associated with better SIBO eradication than antibiotic treatment alone. It has not been studied as a standalone therapy for SIBO, so evidence is preliminary and adjunct-only.
Dose or use Follow product labeling; consult a healthcare practitioner.
Key study Randomized trial (2010, PMID 20937045): rifaximin plus partially hydrolysed guar gum eradicated SIBO more often than rifaximin alone; guar gum was not tested on its own, so its independent effect is unknown.
EvidenceLimited human trials so far · Most of the research is laboratory or animal workTime to resultsTypically 4–8 weeks
Caution: Introduce slowly to avoid temporary gas; check with your practitioner if you have severe motility issues.
Evidence grade not assigned · Traditional use long-standing
Traditional prokinetic for a sluggish gut
Why it may be relevant
If your gut feels sluggish and backed up, ginger has a long traditional use as a digestive aid that helps stimulate movement through the gut and ease indigestion.
Traditionally used to support gut motility and relieve chronic indigestion; impaired motility is a common driver of SIBO symptoms.
Dose or use Follow product labeling; consult a healthcare practitioner.
Key study Traditionally used for this condition; this specific use has not been confirmed in controlled clinical trials.
EvidenceCenturies of traditional use · Human evidence not yet assessedTime to resultsTypically 2-6 weeksTraditional useLong-standing traditional staple
Caution: High doses may cause heartburn or interact with blood-thinning medications; check with your provider.
If sluggishness and bloating are your main complaints, this soluble fiber has preliminary evidence as an add-on: one clinical trial suggested it may improve results when combined with antibiotic treatment, possibly by supporting gut transit.
One clinical trial found that adding it to antibiotic treatment was associated with better SIBO eradication than antibiotic treatment alone. It has not been studied as a standalone therapy for SIBO, so evidence is preliminary and adjunct-only.
Dose or use Follow product labeling; consult a healthcare practitioner.
Key study Randomized trial (2010, PMID 20937045): rifaximin plus partially hydrolysed guar gum eradicated SIBO more often than rifaximin alone; guar gum was not tested on its own, so its independent effect is unknown.
EvidenceLimited human trials so far · Most of the research is laboratory or animal workTime to resultsTypically 4–8 weeks
Caution: Introduce slowly to avoid temporary gas; check with your practitioner if you have severe motility issues.
Evidence grade not assigned · Traditional use long-standing
Traditional prokinetic for a sluggish gut
Why it may be relevant
If your gut feels sluggish and backed up, ginger has a long traditional use as a digestive aid that helps stimulate movement through the gut and ease indigestion.
Traditionally used to support gut motility and relieve chronic indigestion; impaired motility is a common driver of SIBO symptoms.
Dose or use Follow product labeling; consult a healthcare practitioner.
Key study Traditionally used for this condition; this specific use has not been confirmed in controlled clinical trials.
EvidenceCenturies of traditional use · Human evidence not yet assessedTime to resultsTypically 2-6 weeksTraditional useLong-standing traditional staple
Caution: High doses may cause heartburn or interact with blood-thinning medications; check with your provider.
Evidence grade not assigned · Traditional use long-standing
Abdominal point for bloating and gas
Why it may be relevant
If your gut feels sluggish and bloated, ST25 sits on the abdomen beside the navel and is traditionally used to ease bloating, gas and irregular bowel movements.
A Traditional Chinese Medicine point used in self-care to relieve bloating, gas and constipation and support regular digestion.
Dose or use Apply gentle circular pressure about two finger-widths either side of the navel for 1-2 minutes.
Key study Traditionally used for this condition; this specific use has not been confirmed in controlled clinical trials.
EvidenceCenturies of traditional use · Human evidence not yet assessedTime to resultsMay ease discomfort within minutes; regular use over weeks for ongoing supportTraditional useLong-standing traditional staple
Caution: Avoid firm abdominal pressure if pregnant or over recent surgery or a hernia; keep pressure gentle.
What's bothering you most with your SIBO right now?
The bloating and gas — my belly balloons up and I want it calmer
If sluggishness and bloating are your main complaints, this soluble fiber has preliminary evidence as an add-on: one clinical trial suggested it may improve results when combined with antibiotic treatment, possibly by supporting gut transit.
One clinical trial found that adding it to antibiotic treatment was associated with better SIBO eradication than antibiotic treatment alone. It has not been studied as a standalone therapy for SIBO, so evidence is preliminary and adjunct-only.
Dose or use Follow product labeling; consult a healthcare practitioner.
Key study Randomized trial (2010, PMID 20937045): rifaximin plus partially hydrolysed guar gum eradicated SIBO more often than rifaximin alone; guar gum was not tested on its own, so its independent effect is unknown.
EvidenceLimited human trials so far · Most of the research is laboratory or animal workTime to resultsTypically 4–8 weeks
Caution: Introduce slowly to avoid temporary gas; check with your practitioner if you have severe motility issues.
Evidence grade not assigned · Traditional use long-standing
Upper-abdomen point for bloating and indigestion
Why it may be relevant
If bloating and a heavy, backed-up feeling bother you, REN12 sits on the midline above the navel and is traditionally used to settle bloating and indigestion.
A Traditional Chinese Medicine point used in self-care to relieve bloating, indigestion and general stomach discomfort.
Dose or use Apply gentle pressure on the midline about halfway between the navel and the base of the breastbone for 1-2 minutes.
Key study Traditionally used for this condition; this specific use has not been confirmed in controlled clinical trials.
EvidenceCenturies of traditional use · Human evidence not yet assessedTime to resultsMay ease discomfort within minutes; regular use over weeks for ongoing supportTraditional useLong-standing traditional staple
Caution: Avoid firm pressure if pregnant, after eating a large meal, or over recent abdominal surgery; keep it gentle.
Evidence grade not assigned · Traditional use long-standing
Low-fermentation eating to ease bloating and gas
Why it may be relevant
If bloating and gas are your main complaint, a low-fermentation eating pattern reduces the fermentable foods that feed overgrown bacteria and produce gas.
A low-fermentation, lower-FODMAP way of eating is widely used as a first-line self-management approach to reduce the substrate driving bloating.
Dose or use Work with a practitioner or dietitian to structure and reintroduce foods.
Key study Traditionally used for this condition; this specific use has not been confirmed in controlled clinical trials.
EvidenceCenturies of traditional use · Human evidence not yet assessedTime to resultsOften within 1-4 weeksTraditional useLong-standing traditional staple
Caution: Restrictive eating can narrow nutrient intake if followed long-term; do it with guidance and reintroduce foods over time.
Evidence grade not assigned · Traditional use long-standing
Abdominal point for bloating and gas
Why it may be relevant
If your gut feels sluggish and bloated, ST25 sits on the abdomen beside the navel and is traditionally used to ease bloating, gas and irregular bowel movements.
A Traditional Chinese Medicine point used in self-care to relieve bloating, gas and constipation and support regular digestion.
Dose or use Apply gentle circular pressure about two finger-widths either side of the navel for 1-2 minutes.
Key study Traditionally used for this condition; this specific use has not been confirmed in controlled clinical trials.
EvidenceCenturies of traditional use · Human evidence not yet assessedTime to resultsMay ease discomfort within minutes; regular use over weeks for ongoing supportTraditional useLong-standing traditional staple
Caution: Avoid firm abdominal pressure if pregnant or over recent surgery or a hernia; keep pressure gentle.
What kind of help would you rather start with?
Changing how I eat and checking my nutrient levels first
If sluggishness and bloating are your main complaints, this soluble fiber has preliminary evidence as an add-on: one clinical trial suggested it may improve results when combined with antibiotic treatment, possibly by supporting gut transit.
One clinical trial found that adding it to antibiotic treatment was associated with better SIBO eradication than antibiotic treatment alone. It has not been studied as a standalone therapy for SIBO, so evidence is preliminary and adjunct-only.
Dose or use Follow product labeling; consult a healthcare practitioner.
Key study Randomized trial (2010, PMID 20937045): rifaximin plus partially hydrolysed guar gum eradicated SIBO more often than rifaximin alone; guar gum was not tested on its own, so its independent effect is unknown.
EvidenceLimited human trials so far · Most of the research is laboratory or animal workTime to resultsTypically 4–8 weeks
Caution: Introduce slowly to avoid temporary gas; check with your practitioner if you have severe motility issues.
Evidence grade not assigned · Traditional use long-standing
Low-fermentation eating to ease bloating and gas
Why it may be relevant
If bloating and gas are your main complaint, a low-fermentation eating pattern reduces the fermentable foods that feed overgrown bacteria and produce gas.
A low-fermentation, lower-FODMAP way of eating is widely used as a first-line self-management approach to reduce the substrate driving bloating.
Dose or use Work with a practitioner or dietitian to structure and reintroduce foods.
Key study Traditionally used for this condition; this specific use has not been confirmed in controlled clinical trials.
EvidenceCenturies of traditional use · Human evidence not yet assessedTime to resultsOften within 1-4 weeksTraditional useLong-standing traditional staple
Caution: Restrictive eating can narrow nutrient intake if followed long-term; do it with guidance and reintroduce foods over time.
Evidence grade not assigned · Traditional use long-standing
Common nutrient shortfall in long-standing SIBO
Why it may be relevant
If you feel run-down or worried about absorption, B12 is the nutrient most often depleted in SIBO because overgrown bacteria consume dietary B12 before your body can absorb it.
Recognizing a possible B12 shortfall matters because it is a well-documented consequence of SIBO and can cause fatigue, and, if severe, anemia and nerve symptoms.
Dose or use Ask your practitioner about testing B12 levels; supplement only under guidance.
Key study Traditionally recognized as a consequence of this condition; this specific link has not been reframed here from a controlled clinical trial.
EvidenceCenturies of traditional use · Human evidence not yet assessedTime to resultsEnergy may improve over weeks once levels are correctedTraditional useLong-standing traditional staple
Caution: Fatigue and tingling have many causes; confirm a shortfall with testing rather than self-treating.
What kind of help would you rather start with?
Simple hands-on techniques I can do myself for quick relief
–
Pressure point
REN12 (Zhongwan)
Evidence grade not assigned · Traditional use long-standing
Upper-abdomen point for bloating and indigestion
Why it may be relevant
If bloating and a heavy, backed-up feeling bother you, REN12 sits on the midline above the navel and is traditionally used to settle bloating and indigestion.
A Traditional Chinese Medicine point used in self-care to relieve bloating, indigestion and general stomach discomfort.
Dose or use Apply gentle pressure on the midline about halfway between the navel and the base of the breastbone for 1-2 minutes.
Key study Traditionally used for this condition; this specific use has not been confirmed in controlled clinical trials.
EvidenceCenturies of traditional use · Human evidence not yet assessedTime to resultsMay ease discomfort within minutes; regular use over weeks for ongoing supportTraditional useLong-standing traditional staple
Caution: Avoid firm pressure if pregnant, after eating a large meal, or over recent abdominal surgery; keep it gentle.
–
Pressure point
ST25 (Tianshu) - Stomach 25
Evidence grade not assigned · Traditional use long-standing
Abdominal point for bloating and gas
Why it may be relevant
If your gut feels sluggish and bloated, ST25 sits on the abdomen beside the navel and is traditionally used to ease bloating, gas and irregular bowel movements.
A Traditional Chinese Medicine point used in self-care to relieve bloating, gas and constipation and support regular digestion.
Dose or use Apply gentle circular pressure about two finger-widths either side of the navel for 1-2 minutes.
Key study Traditionally used for this condition; this specific use has not been confirmed in controlled clinical trials.
EvidenceCenturies of traditional use · Human evidence not yet assessedTime to resultsMay ease discomfort within minutes; regular use over weeks for ongoing supportTraditional useLong-standing traditional staple
Caution: Avoid firm abdominal pressure if pregnant or over recent surgery or a hernia; keep pressure gentle.
What kind of help would you rather start with?
Targeted herbal antimicrobials to help knock back the overgrowth
Evidence grade not assigned · Traditional use recognised
Traditionally used for gut bacterial balance
Why it may be relevant
If your focus is on reducing bacterial overgrowth and restoring a healthier gut environment, berberine has a long traditional-use history as an antimicrobial herb.
Traditionally used to help inhibit unwanted bacterial growth in the digestive tract and support a more balanced gut microbiome.
Dose or use Follow product labeling; consult a healthcare practitioner.
Key study Traditionally used for this condition; this specific use has not been confirmed in controlled clinical trials.
EvidenceNot yet assessed · We have not reviewed the literature for this oneTime to resultsTypically 4–8 weeksTraditional useRecognised traditional use
Caution: Not recommended during pregnancy; may interact with certain medications — check with your healthcare provider.
Evidence grade not assigned · Traditional use long-standing
Antimicrobial fatty acid used in SIBO protocols
Why it may be relevant
If your focus is on clearing the overgrowth, caprylic acid is a medium-chain fatty acid whose traditional use includes reducing unwanted bacterial and fungal growth in the gut.
A medium-chain fatty acid (from coconut and palm oil) traditionally used for its antimicrobial action; it is a common part of natural gut-rebalancing routines.
Dose or use Follow product labeling; consult a healthcare practitioner.
Key study Traditionally used for this condition; this specific use has not been confirmed in controlled clinical trials.
EvidenceCenturies of traditional use · Human evidence not yet assessedTime to resultsTypically 4-8 weeksTraditional useLong-standing traditional staple
Caution: May cause nausea or loose stools when introduced; start low and check with your provider if you have gut inflammation.
Evidence grade not assigned · Traditional use long-standing
Herbal antimicrobial used to rebalance the gut
Why it may be relevant
If you want to clear the overgrowth, high-allicin garlic is a botanical whose allicin content gives it a long traditional use as an antimicrobial in gut-rebalancing routines.
Traditionally used as an antimicrobial botanical, particularly in herbal approaches to bacterial overgrowth; offered as a distinct option alongside berberine.
Dose or use Follow product labeling; consult a healthcare practitioner.
Key study Traditionally used for this condition; this specific use has not been confirmed in controlled clinical trials.
EvidenceCenturies of traditional use · Human evidence not yet assessedTime to resultsTypically 4-8 weeksTraditional useLong-standing traditional staple
Caution: Whole garlic is high-FODMAP and may worsen bloating; standardized allicin extracts differ. May thin blood and interact with blood-thinning medications.
Evidence grades describe the strength of published research for Small Intestinal Bacterial Overgrowth (SIBO), not a promise of results. A higher grade is not a personal recommendation. Nothing here is medical advice — talk to your clinician before starting anything, especially alongside prescription medication.
Related pressure points
Hands-on options you can try yourself.
Acupressure is a comfort measure, not a treatment for Small Intestinal Bacterial Overgrowth (SIBO) itself. Each page shows where the point is and how to press it.
The evidence behind Small Intestinal Bacterial Overgrowth (SIBO), in one page
We track 8 natural options for Small Intestinal Bacterial Overgrowth (SIBO) — what each is typically used for, usual dose, cautions, and the study behind the ones with real trial data.
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