FODMAPs: when science validates a millennial TCM principle
In 2011, Gibson and Shepherd published the FODMAPs protocol (Fermentable Oligosaccharides, Disaccharides, Monosaccharides And Polyols) for the treatment of irritable bowel syndrome. The principle: eliminate fermentable sugars that excessively feed intestinal bacteria, then reintroduce them progressively.
In TCM, this concept has been known for centuries: certain foods “stick” and generate Dampness (湿 Shī), weakening the Spleen. Onion, garlic, cabbages, legumes - all classified as Dampness generators in TCM - are exactly the FODMAP-rich foods that science identifies as triggers.
TCM had classified FODMAPs 2000 years before their discovery.
Explore the complete protocol in Digestion: The TCM & Science Alliance and the Complete Guide.
FODMAPs explained: the mechanics of fermentation
FODMAPs are short-chain carbohydrates poorly absorbed in the small intestine. They arrive intact in the colon where bacteria ferment them, producing gases (hydrogen, methane) and fatty acids. Result: abdominal distension, pain, bloating, diarrhoea or constipation.
| FODMAP Group | Examples | Mechanism | TCM Classification |
|---|---|---|---|
| Oligosaccharides (fructans, GOS) | Wheat, rye, onion, garlic, legumes | Rapid colonic fermentation | Generate Dampness-Tan |
| Disaccharides (lactose) | Milk, yoghurt, fresh cheeses | Lactase deficit | Dampness-Milk (dairy products = Dampness) |
| Monosaccharides (excess fructose) | Apple, honey, agave syrup | Limited absorption by GLUT5 transport | Sweet fruits = Dampness-Heat |
| Polyols (sorbitol, mannitol) | Pear, cherry, sweeteners | Intestinal osmosis | Cold/damp foods |
The cross-reference table: Low-FODMAP foods good for Qi
One of the major contributions of the book is this cross-reference table that allows choosing foods that are both low in FODMAPs and favourable to Spleen Qi.
| Aliment | Nature | Saveur | Méridiens | Actions | Précautions |
|---|---|---|---|---|---|
| White rice | Neutral | Sweet | Spleen, Stomach | Tonifies Qi, easy to digest | Low in FODMAPs, base food of the protocol |
| Squash (pumpkin) | Warm | Sweet | Spleen, Stomach | Tonifies Qi, warms the Centre | Low in FODMAPs, ideal in soup |
| Cooked carrot | Neutral | Sweet | Spleen, Stomach | Tonifies Qi, harmonises the Centre | Low in FODMAPs, gentle prebiotic |
| Fresh ginger | Warm | Pungent | Spleen, Stomach, Lung | Warms, makes Qi circulate | Low in FODMAPs, anti-nausea |
| Lean meat (chicken) | Neutral | Sweet | Spleen, Stomach | Tonifies Qi and Blood | Low in FODMAPs, safe protein |
| Pumpkin | Warm | Sweet | Spleen, Stomach | Tonifies Spleen, drains Dampness | Low in FODMAPs, rich in beta-carotene |
Cross-reference table - After Gibson & Shepherd, 2010 and TCM pharmacopoeia
The crossed elimination and reintroduction protocol
The classic FODMAP protocol has three phases. The TCM contribution enriches each phase with an energetic dimension.
Phase 1: Strict elimination (2-6 weeks)
- Science: Remove all FODMAPs to reduce fermentation
- TCM: Remove Dampness-generating foods + warm the Centre
- Actions: Systematic cooking, warming spices (ginger, cinnamon), bone broth
Phase 2: Progressive reintroduction (6-8 weeks)
- Science: Test each FODMAP group individually to identify intolerances
- TCM: Observe the Spleen’s reaction to each reintroduction (tongue, pulse, stools)
- Actions: Reintroduce one group per week, note tolerance according to both grids
Phase 3: Personalisation (long-term)
- Science: Maintain tolerated FODMAPs, avoid triggers
- TCM: Adapt according to season, terrain, evolution of Qi Deficiency
- Actions: In winter, warm more; in summer, integrate more moderate Freshness
FAQ
Are FODMAPs bad for everyone?
No. FODMAPs are only problematic in people with an unbalanced microbiome (SIBO, dysbiosis) or a weak Spleen in TCM. In a healthy subject, FODMAPs are beneficial prebiotics that feed butyrate-producing bacteria. The elimination protocol is a diagnostic tool, not a lifelong diet.
How long does the integrative FODMAPs protocol last?
The elimination phase lasts 2 to 6 weeks depending on severity. Reintroduction lasts 6 to 8 weeks. In total, 8 to 14 weeks to identify your personal profile. The book proposes an accelerated 8-week protocol for “Dampness” Spleen profiles. See the repair protocol
To go further
- Food Intolerances and Tan - Gluten, Casein and Phlegm
- Leaky Gut and Dampness - Leaky Gut under two perspectives
- Microbiome and Spleen Qi - The fundamental parallel
- Complete Guide to the Integrative Alliance - Overview
For the complete protocol with cross-reference tables and recipes:
Order the book Digestion: The TCM & Science Alliance
To go further
Yin Shi ecosystem resources directly related to this article.
Is your Spleen carrying Dampness?
The five-organ test locates the Spleen behind the fermentations that bloat.
Take the test →The FODMAP protocol: phases and limits
The lesson details the FODMAP protocol, its phases and limits, cross-referenced with Spleen Dampness.
Take the lesson →Digestion: where TCM meets science
The book covers FODMAPs and the Spleen Dampness the integrative protocol combines.
Discover the book →