Low FODMAP diet

What is a low FODMAP diet?

The low FODMAP diet was developed by researchers at Monash University in Melbourne, Australia. It has now been scientifically proven to significantly reduce gastrointestinal symptoms in up to 75% of people with Irritable Bowel Syndrome (IBS). It works by limiting the foods that are high in FODMAP sugars and are known to be involved in triggering IBS type symptoms.


Who is the low FODMAP diet for?

Approximately 15% of Americans suffer with symptoms of Irritable Bowel Syndrome such as bloating, abdominal pain, excessive wind and altered bowel habits (constipation and/or diarrhoea). The low FODMAP diet is now recommended worldwide as the “go to” dietary intervention to identify triggers and manage these symptoms.


The low FODMAP diet is very effective and has been shown to be effective for:

  • People who suffer with gastrointestinal symptoms such as bloating, cramping, excess wind or altered bowel habits (constipation and/or diarrhoea)

  • People who are in remission from Inflammatory bowel diseases (IBD) but have ongoing symptoms

  • People who have abdominal pain related to endometriosis

  • People who have celiac disease, but have ongoing symptoms despite following a gluten free diet

Before you start:

1. See your doctor

Certain serious medical conditions can have identical symptoms to IBS, so it is essential to see your doctor and have these excluded prior to changing your diet.

2. Investigate healthy habits:

a. regular meals and eating slowly

b. getting enough fibre and fluids

c. limiting alcohol, carbonated drinks, coffee or spicy foods

d. managing stress

e. getting enough sleep

3. Consider

if you are willing and able to restrict your diet for a period of time, without compromising your health.

4. See a specialist Registered Dietitian:

The low FODMAP diet is a complex medical diet and it is recommended to be implemented with the guidance of a Registered Dietitian who can tailor recommendations to meet your needs.

How to implement a low FODMAP diet

The low FODMAP diet is not a forever diet. It is a tool that is designed to identify the foods that are involved in triggering your symptoms. These foods will be different for everyone. To identify your individual triggers, the low FODMAP diet comprises of three phases with the end goal being as much variety as possible with as few symptoms as possible.

Phase 1: The low FODMAP phase.

The 2-6 week low FODMAP phase is designed to identify if limiting results in a significant and consistent reduction in gastrointestinal symptoms. During this phase, it is important to remove all high FODMAP foods from your diet and replace them with low FODMAP alternatives.

Phase 2: The Re-challenge phase.

In the Re-challenge phase, each FODMAP group is challenged insolation to identify which ones are the main culprits for your symptoms and which ones are well tolerated. This phase needs to be well structured and challenge foods need to be chosen carefully to help you get clear results.

Phase 3: The Modified low FODMAP diet.

In this phase, you get to use the information gathered during your re-challenges to methodically reintroduce the FODMAPs and serve sizes you tolerated well to achieve as much variety as possible without triggering unpleasant gastrointestinal symptoms. This phase is important, as it ensures that your diet is balanced in the long term for optimal health, wellbeing and of course to keep your gut healthy.


© Everyday Nutrition Australia 2018