Choy Sum (Raw)

TLDRLast updated 27 September 2026

Choy sum is low FODMAP at the Monash app's 75 g raw-weight reference, approximately one cup. Its entry explicitly gives a low-FODMAP range up to 500 g. That larger figure is a range statement rather than advice to eat half a kilogram of choy sum at a meal.

Serving sizes for choy sum (raw)

Choy sum, raw: 75 g is the one-cup reference. The explicit low-up-to-500 g note is not a target portion or a cooked-weight conversion.

Low
1 cupabout 75 g

Tested serving sizes

Tested serving sizes for Choy Sum (Raw) and their Gut Friendly rating
ServingAmountMain FODMAPRating
1 cup75 gNone detectedLow
500 g portion500 gNone detectedLow

Breakdown for 1 cup

0gFructose
0gLactose
0gFructans
0gGOS
0gSorbitol
0gMannitol
1 cupabout 75 g

Is choy sum (raw) low FODMAP?

All six FODMAP groups are green in the checked 75 g panel, with no separate amber or red amount displayed for choy sum. The reference names the vegetable raw, so its cup description does not describe a cup of cooked greens or a portion already covered in sauce.

Choy Sum (Raw) and IBS: what to know

A choy sum side can be assessed more clearly when the vegetable amount and sauce are recorded separately. At a restaurant, ask what goes into the sauce if that information affects your IBS plan. The app result for plain choy sum does not establish the rating of every dish bearing its name.

Gut-friendly ways to eat choy sum (raw)

Wash the choy sum and weigh the amount intended for each person before cutting and cooking it. Use it in a vegetable side, noodle bowl or soup with separately assessed ingredients. For another named green, mustard cabbage has its own app-backed guide. Keep the raw weight in a shared recipe rather than trying to infer it from the finished pan.

Frequently asked questions

Is there an amber choy sum portion in this check?

The checked entry shows 75 g green and a written low-FODMAP range up to 500 g. It does not show an amber or red serving.

Is a restaurant choy sum dish automatically low FODMAP?

The vegetable reference cannot rate an unknown sauce or added ingredients. Use the dish's actual preparation and portion when making that decision.

Can I swap another Chinese green into this guide?

Use the entry matching the name and preparation of the vegetable you bought. Choy sum's range is not a general allowance for every leafy green.

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Sources and editorial notes

  • Monash University FODMAP Diet App

    Monash University FODMAP Diet app entry “Choy sum, raw” checked directly on 27 September 2026. The portion weights, traffic-light ratings and FODMAP groups discussed here were verified in matching detail panels. Numerical FODMAP concentration estimates elsewhere in the catalogue were not validated by this check.

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.