Digestive
    Moderate Evidence

    Bloating Reduction

    Decreased abdominal distension and discomfort.

    TL;DR

    Most bloating is fermentation-driven. A low-FODMAP trial, enteric-coated peppermint oil and targeted probiotics have the best evidence; digestive enzymes help only for specific intolerances.

    Why It Matters

    Bloating reflects some combination of excess gas production from carbohydrate fermentation, impaired transit, visceral hypersensitivity and abdominal wall dyssynergia. It is the most common complaint in irritable bowel syndrome but also appears in coeliac disease, SIBO, pancreatic insufficiency, and ovarian pathology. New persistent bloating in a woman over 50, or bloating with weight loss, bleeding or anaemia, requires investigation rather than dietary experimentation.

    How to Measure

    Screen for coeliac disease with tissue transglutaminase IgA and total IgA before removing gluten. Consider hydrogen and methane breath testing for lactose, fructose and SIBO. Faecal calprotectin distinguishes inflammatory from functional causes. A structured 2-6 week low-FODMAP elimination with systematic reintroduction is the single most informative diagnostic step for functional bloating.

    Biomarkers

    Tissue transglutaminase IgA
    Faecal calprotectin
    Hydrogen/methane breath test
    Faecal elastase
    Full blood count

    Optimization Protocol

    Run a supervised low-FODMAP elimination for 2-6 weeks, then reintroduce methodically — the reintroduction phase matters as much as the elimination and long-term restriction harms the microbiome. Eat slowly, avoid carbonated drinks, chewing gum and sugar alcohols. Supplement layer: enteric-coated peppermint oil 180-225 mg two to three times daily before meals, a multi-strain probiotic trialled for at least four weeks, ginger 1 g/day for delayed gastric emptying, and lactase or alpha-galactosidase where a specific intolerance is confirmed. Address constipation, since retained stool amplifies distension.

    Supporting Supplements

    Supporting Research

    Frequently Asked Questions

    Typical Timeframe

    Peppermint oil acts within days; low-FODMAP effects appear within 2-4 weeks; probiotics need 4-8 weeks.

    Research Summary

    Studies7
    Supplements2
    Evidence
    Moderate Evidence

    My Notes

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    This information is for educational purposes only. Always consult a healthcare professional before starting any supplement regimen.