Re: Questions for those who've tested positive for Methane on a lactulose Breath Test.
11/03/07 05:38 AM
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Syl
Reged: 03/13/05
Posts: 5499
Loc: SK, CANADA
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Some researchers think that SIBO is a secondary effect of eating foods that promote the growth of bacteria that produce methane and/or hydrogen gas.
For example, in this article Malabsorption of Fructose and Other Short-chain Carbohydrates there is a discussion of the link between foods and SIBO ( they call it SBBO - small bowel bacterial overgrowth ).They say Quote:
Fructose is like a "fast food" for bacteria and its presence in the lumen of the distal small bowel may itself lead to increased bacterial populations. Furthermore, fructose is converted to fructans by many bacteria and this process promotes adherence of bacteria to teeth in the pathogenesis of dental caries. If such an effect occurs in the small intestinal biofilm, luminal fructose will further enhance the likelihood of SBBO. In other words, FM [fructose malabsorptoin] and SBBO may be interdependent factors and dealing with one might affect the other. Thus, antibiotics reduce FM and an elemental diet (i.e. nutritional formula not requiring digestion, where bacterial substrates are diminished) reduces SBBO. Alternative options exist, therefore, for managing patients with functional gut symptoms and FM with antibiotics or dietary reduction of FODMAPs. Since the problem is chronic, dietary change is a lot more attractive than long term or recurrent antibiotics as therapy.
The general idea is that you have control the consumption of certain foods (particularly certain sugars like fructose, lactose, etc) that are not digested in the small intestine but pass through to the colon and act as food for the unwanted bacteria. While using antibiotics may give temporary relief the unwanted bacteria may multiple and increase their populations to problematic levels again.
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STABLE: ♂, IBS-D 50+ years - Science of IBS
The FODMAP Approach to Managing IBS Symptoms
Evidence-based Dietary Management of Functional GI Symptoms: The FODMAP Approach
FODMAP Chart & Cheatsheet
The Role of Food & Dietary Intervention in IBS
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