Irritable Bowel Syndrome (IBS)
Irritable Bowel Syndrome (IBS) is a common functional disorder of the large intestine characterized by long-term changes in bowel habits (e.g., frequent diarrhea or constipation) and abdominal pain. The exact causes are unknown, but research suggests that multiple factors — such as the gut-brain axis, abnormal muscular contractions, and gut microbes — could play a role in the disease. IBS can be managed with dietary modifications, psychotherapy, supplements, and prescription medications.
Quick Answer
What it is
Irritable Bowel Syndrome (IBS) is a common functional disorder of the large intestine characterized by long-term changes in bowel habits (e.g., frequent diarrhea or constipation) and abdominal pain. The exact causes are unknown, but research suggests that multiple factors — such as the gut-brain axis, abnormal muscular contractions, and gut microbes — could play a role in the disease.
Key findings
- Grade A: Irritable Bowel Syndrome Symptoms (Peppermint)
- Grade A: Abdominal Pain (Melatonin)
- Grade B: Constipation Signs and Symptoms (Senna)
Safety
No specific caution or interaction language was detected in the current summary/outcome notes.
ℹ️ Quick Facts
Quick Facts: Irritable Bowel Syndrome (IBS)
- Supplements Studied:12
- Research Trials:22
- Total Participants:733,259
- Grade A Supplements:2
- Top Supplement:Peppermint (A)
Evidence-Based Protocol
Supplement stack ranked by research quality
Primary Stack (Tier 1)
Menthol blocks calcium channels in intestinal smooth muscle, producing direct antispasmodic effects
Restores gut microbiome balance, strengthens intestinal barrier integrity, and modulates gut-brain axis signaling
Supporting Stack (Tier 2)
Soluble fiber normalizes stool consistency and transit time through water absorption and bulk formation
Nine-herb combination modulates GI motility, reduces visceral hypersensitivity, and has anti-inflammatory effects
How It Works
IBS involves a disrupted connection between your brain and gut. Your intestines become hypersensitive, overreacting to normal signals with pain, bloating, and altered bowel habits (diarrhea, constipation, or both). The gut microbiome is often imbalanced, and the enteric nervous system sends too many pain signals.
Expected timeline: Peppermint provides relief within 1-2 hours of dosing. Probiotic benefits develop over 4-8 weeks. Fiber effects begin within days but require consistent use.
Supplements for Irritable Bowel Syndrome (IBS)
Sorted by strength of evidence
Detailed Outcomes
Research Citations (13)
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