Watermelon

TLDRLast updated 7 October 2026

Watermelon: the low FODMAP reference is 18 g. Use peeled raw seedless watermelon. Weigh the flesh; juice, dried fruit and mixed melon salads are different preparations.

Serving sizes for watermelon

Melon, watermelon, seedless, peeled, raw: 18 g low, 24 g moderate, 150 g high. Use the stated preparation and unit.

Low
18 g
FructoseLow
LactoseLow
FructansLow
GOSLow
SorbitolLow
MannitolLow

Reference portions

Select an amount or rating to update your portion. These are reference portions, not exact cut-offs or recommended intakes.
Reference portions for Watermelon and their FODMAP ratings
ServingAmountFODMAP rating
18 g reference portion
24 g reference portion
150 g reference portion

Is watermelon low FODMAP?

The references for melon, watermelon, seedless, peeled, raw are 18 g low, 24 g moderate, 150 g high. They are comparison portions, not exact transition cutoffs or personal tolerance limits.

Watermelon and IBS: what to know

For watermelon, keep the exact form and amount in mind. Portion size and preparation affect how food references should be compared. Monash: FODMAP questions and food preparation. This public source supplies background, not verification of the numerical table.

Gut-friendly ways to eat watermelon

Use peeled raw seedless watermelon. Weigh the flesh; juice, dried fruit and mixed melon salads are different preparations. Compare Cantaloupe (Rockmelon), Honeydew Melon. These guides describe their own preparations and portions.

Frequently asked questions

What is the FODMAP portion for watermelon?

Watermelon: 18 g low, 24 g moderate, 150 g high. These values apply to melon, watermelon, seedless, peeled, raw.

How should I measure or check watermelon?

Use peeled raw seedless watermelon. Weigh the flesh; juice, dried fruit and mixed melon salads are different preparations.

Which other guides are useful when comparing watermelon?

Compare Cantaloupe (Rockmelon), Honeydew Melon. These guides describe their own preparations and portions.

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Sources and editorial notes

Published and maintained by Gut Friendly. This guide has not been independently reviewed by a dietitian. Serving information comes from our food catalogue. Where references are listed, they explain the research and preparation differences. Check the original source for current portions.

Gut Friendly provides general information, not medical advice.