Tea (Oolong, Weak Brew)

TLDRLast updated 3 October 2026

Weak oolong tea is low FODMAP at 137 ml. Fructans are moderate at 174 ml and high at 250 ml. The reference uses one tea bag steeped for one to two minutes.

Serving sizes for tea (oolong, weak brew)

The low reference is 137 ml; 174 ml is moderate and 250 ml is high in fructans. These volumes apply to the specified weak infusion.

Avoid
1 cupabout 250 ml

Tested serving sizes

Tested serving sizes for Tea (Oolong, Weak Brew) and their Gut Friendly rating
ServingAmountMain FODMAPRating
1 cup250 mlFructans 0.3 gAvoid
137 ml portion137 mlFructans 0.1 gLow
174 ml portion174 mlFructans 0.17 gModerate

Breakdown for 1 cup

0gFructose
0gLactose
0.3gFructans
0gGOS
0gSorbitol
0gMannitol
1 cupabout 250 ml

Is tea (oolong, weak brew) low FODMAP?

Even this short-brew preparation changes rating with volume: the 250 ml cup is high in fructans. The other listed groups remain low at the reference amounts. Oolong tea has a separate guide for its preparation, and strong white tea is a different tea rather than a substitute with an identical serving.

Tea (Oolong, Weak Brew) and IBS: what to know

If comparing oolong drinks in relation to IBS, record the infusion time and amount consumed, including refills from a small pot. A short steep does not by itself establish a low portion at every volume. The rating does not predict an individual's symptoms or account for milk and sweeteners.

Gut-friendly ways to eat tea (oolong, weak brew)

Use a timer and remove the tea bag after the short infusion. Measure the 137 ml reference in a marked jug to see how it fits your usual cup. For repeated infusions or loose-leaf methods, do not assume they match this tea-bag preparation. Check any added honey or syrup separately and record the total drink consumed rather than only the first pour.

Frequently asked questions

Is a full 250 ml cup of weak oolong low FODMAP?

No. The listed 250 ml amount is high in fructans, despite the short brew. The low reference is 137 ml.

Which group increases in weak oolong?

Fructans are moderate at 174 ml and high at 250 ml. The other listed groups remain low.

What steeping time is used for weak oolong?

One tea bag is infused for one to two minutes. A longer or differently prepared infusion is not the same reference.

Can I add water to a large brewed portion to make it low?

Dilution changes concentration, but consuming all the original tea still includes that amount. Match the listed preparation and volume rather than assuming dilution establishes a new rating.

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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.