100-day satisfaction guarantee*A low FODMAP diet involves more than swapping the contents of your shopping trolley. It is a short, structured investigation of your food triggers, followed by a return to as much variety as you can comfortably manage. Planning for each stage helps the diet fit around work, family meals and eating out.
Know where the diet is heading
FODMAPs are a group of short-chain carbohydrates. For some people with irritable bowel syndrome (IBS), reducing them temporarily can help identify food-related symptoms. A low FODMAP diet is not the same as a gluten-free diet, and it is not intended to be a permanent list of forbidden foods.
The programme has three stages: a short restriction phase, usually 2–6 weeks; a series of food challenges; and a personalised long-term diet. A dietitian can guide the challenges and help you decide what to do if symptoms do not improve. Monash University explains the three-stage approach.
Set yourself up before changing what you eat
1. Start with a diagnosis and a dietitian
Digestive symptoms can have several causes. Discuss them with your GP before starting a restrictive diet. Once a low FODMAP trial is appropriate, a dietitian can help you choose alternatives, keep meals balanced and plan when to reassess. This is particularly useful if you already avoid other foods.
2. Choose a manageable starting week
Plan a few familiar breakfasts, lunches and dinners instead of trying to learn an entirely new way of cooking at once. Check what you already have at home, write a shopping list and allow time to read ingredient labels. Keep suitable meal and snack options available so a busy day does not turn into a skipped meal.
3. Bring the people around you into the plan
Explain to family, friends or the person who usually cooks what you are trialling and how long the first stage will last. Sharing the practical details makes it easier to organise a meal together, pack lunch or check a restaurant menu in advance.
Make the restriction phase informative
4. Think “low”, rather than eliminating every FODMAP
The amount eaten matters. A food can be suitable in one portion and less suitable in a larger amount. Use the FODMAP Coach App information and the Monash FODMAP app as practical resources, alongside your dietitian’s advice, rather than treating a general food list as an unlimited allowance.
5. Record food, portions and symptoms together
A simple diary can include meal times, ingredients, approximate portions and how you felt afterwards. Record the days that go well too. This gives your dietitian a more useful picture than a list of foods you suspect and makes it easier to discuss a pattern without changing several things at once.
6. Eat enough across the day
Restriction should not mean going hungry. Choose meals and snacks that suit your appetite and routine. Smaller, more frequent meals may suit some people, but there is no need to adopt a fixed number of meals just because you are following a FODMAP plan.
7. Build meals around the foods available to you
It is easy to focus on what has changed. Keep a list of meals you enjoy and can make during this stage, then vary the flavours and accompaniments within your plan. Our recipe collection offers ideas to discuss or adapt with your dietitian; check each recipe’s ingredients and portion guidance.
Keep the next two stages in view
8. Review the trial at the planned time
The restrictive stage is temporary. Take your diary to your follow-up appointment and review whether the trial has helped before continuing. More restriction is not automatically a better next step.
9. Reintroduce foods in an organised way
Food challenges help you learn about individual FODMAP groups and the amounts you tolerate. Follow the challenge plan rather than trying several foods together, so the result is easier to interpret.
10. Use what you learn to widen your choices
The long-term aim is your own workable eating pattern, including tolerated foods and portions. Keep reviewing what works as circumstances change. For background information, visit our public FODMAP guide.
Product certification and dietary advice have different roles. A Monash Low FODMAP certification applies to the assessed product and serving; it does not replace individual advice or certify every meal eaten alongside it.