Mixed
A structured, three-stage low FODMAP diet (restriction, reintroduction, personalization) administered by a trained dietitian effectively manages functional gastrointestinal symptoms in 50-80% of patients with Irritable Bowel Syndrome (IBS).
If you have IBS, do not start a restrictive diet on your own. First, see a doctor to rule out other conditions. Then, work with a dietitian trained in the low FODMAP diet. The process has three steps: 1) Restrict high-FODMAP foods for 4-8 weeks to see if symptoms improve. 2) If they do, systematically reintroduce specific food groups to identify your personal triggers. 3) Create a long-term diet that excludes only your triggers, allowing you to eat a wider variety of foods. Use provided resources like apps and diet sheets to help, but rely on your dietitian for guidance.
Numerous reviews have been published regarding the evidence for their restriction in the low FODMAP diet... To date, there are at least 10 randomised controlled controls or randomised comparative trials of the low FODMAP diet, most of which demonstrate its efficacy compared to a control, resulting in a clinical response in 50–80% of IBS patients (13).
Why this rating
Supported by multiple RCTs and systematic reviews, though the review notes limitations in blinding and bias in some trials.
Source
The low <scp>FODMAP</scp> diet in the management of irritable bowel syndrome: an evidence‐based review of <scp>FODMAP</scp> restriction, reintroduction and personalisation in clinical practice
Kevin Whelan et al. · Journal of Human Nutrition and Dietetics · 2018
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