The whole point of the elimination phase is to confirm that you're actually sensitive to FODMAPs in foods. If FODMAPs are an issue for you then eliminating them should have a positive effect on your IBS symptoms. FODMAPs do not automatically affect everyone suffering from IBS. Not everyone with IBS feels the benefits of eliminating FODMAPs from their diet.
How will I know if I'm sensitive to FODMAPs?
If you're sensitive to FODMAPs it should become clear once you significantly reduce them from your diet. Eating high FODMAP food or large, multiple portions of low FODMAP food can cause:
- bloating
- stomach cramps
- stomach pain
- gurgling noises
- flatulence
- diarrhoea
- constipation
An elimination phase of 2-4 weeks is typically long enough to identify if your symptoms are triggered by FODMAPs. Some people may then need a few weeks longer to experience noticeable relief from their symptoms. Before week 6 you should have achieved a baseline level of symptoms that you're happy with.
What if my symptoms don't improve?
If you're confident you've been following a strict low FODMAP diet for at least 4 weeks and haven't noticed any positive improvements then it's advised that you consult your dietitian.
Your dietitian can help you to;
- assess your food and symptoms journal to look for clues and patterns
- pinpoint pesky FODMAPs you've overlooked in your diet and get you back on track
- ensure your nutritional needs are met if you need to continue eliminating FODMAPs for a longer period
- work with your medical team on alternative approaches
- identify non-FODMAP food triggers
It's also possible that you may be one of the 20-40% of IBS sufferers that are not affected by FODMAPs. [1, 2]
Confused about elimination phase? Check out the other posts in this series.
Do you know which FODMAPs you're sensitive to?
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