Articles on: FAQs

FODMAP Test Substrates – Common Questions

❓ What are the FODMAP test substrates made of?

The FODMAP test substrates are made of specific sugars that are naturally found in food. These sugars are used to help assess how your body digests different types of FODMAPs.

❓ Are they gluten free?

Yes — the substrates are made only of sugars and do not contain gluten. They are safe to use if you have coeliac disease or are following a gluten-free diet.

❓ Can I complete these tests if I’m diabetic?

If you have diabetes, it’s very important to consult your healthcare provider before completing a FODMAP challenge. They will be best placed to advise you, as the substrates are sugars and could affect your blood glucose levels.

✨ Remember: If you’re ever unsure about whether FODMAP testing is right for you, please check with your healthcare provider first.

Updated on: 24/09/2025

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