What to eat before a Challenge?
Preparing for Your FoodMarble Challenge
The Day Before
Last meal before fasting: Make it low FODMAP.
- Think plain and simple: Potatoes, rice (white and basmati), rice noodles, meat, fish, eggs, walnuts, cucumbers, carrots, olives, kiwi, strawberries.
- Find recipes in the Recipes section of the FoodMarble app or on the FoodMarble blog
- Read our full guide on how to prepare for a Challenge
The Morning of Your Challenge
No food except for the test food or FODMAP substrate.
Drink water as needed, but:
- Avoid excessive amounts (can affect results)
- Stick to sipping still water only
During the 3-Hour Test Window
- Do not eat any other foods.
- Continue drinking still water in moderation.
After the Test Window Ends
If no rise in fermentation levels during the 3-hour test window:
- Eat a light low FODMAP meal that you know you tolerate well
- Keep testing hourly with your FoodMarble device
- This helps detect any late rises (common with certain FODMAPs like inulin)
Updated on: 14/08/2025
Thank you!