Tea (green)
Beverages · Coffee Tea
Green tea is the drink people take up on purpose, and on FODMAP grounds the decision holds: a 250 ml cup is rated green, with fructans at 0.02 g and no other group registering. The caveat is not fermentable carbohydrate at all. Green tea is a caffeinated drink, and plenty of people who switch to it from coffee do not expect that.
Last updated 4 September 2026Serving sizes for tea (green)
One cup, 250 ml, is rated green, and 0.02 g of fructans is the only entry on the panel.
Tested serving sizes
| Serving | Amount | Main FODMAP | Rating |
|---|---|---|---|
| 1 cup | 250 ml | Fructans 0.02 g |
Breakdown for 1 cup
Is tea (green) low FODMAP?
Steeping is a filter. Hot water pulls out flavour, caffeine and a little soluble carbohydrate, then the spent leaf is thrown away with most of the plant still in it, which is why the cup reads 0.02 g of fructans and zeros everywhere else. Matcha breaks that arrangement. It is stone-ground leaf whisked into water and swallowed whole, so nothing is discarded, and this guide holds no tested serve for it. Treat matcha as unmeasured rather than as covered by the figure on this page.
Tea (green) and IBS: what to know
Green tea arrives with expectations attached, usually as the healthy swap for something else, and those are worth separating from what a rating covers. A green mark describes fermentable carbohydrate in the portion and stops there: it says nothing about caffeine, which green tea does contain, less than a coffee but not none. If you moved off black coffee and your mornings did not change, the stimulant may still be in the picture rather than out of it. The same plant also yields oolong, which is rated red at a single cup, so the leaf by itself does not predict the number.
Gut-friendly ways to eat tea (green)
Bottled and canned versions are where a plain drink gets complicated: most are sweetened, and honey is rated red where white sugar is green, so the ingredients panel decides it rather than the words on the front. Jasmine and genmaicha are the same leaf with a flower or toasted rice added, and neither brings anything new. Milk suits it badly anyway, curdling in a thin, tannic cup, so a slice of lemon is the usual addition and carries nothing on the panel. Water off the boil keeps it from turning bitter.
Frequently asked questions
Does green tea have caffeine?
Yes, and that is the most common misunderstanding about it. Green tea comes from the same plant as black tea and is not a caffeine-free drink, though a cup carries less than a coffee. The rating here measures fermentable carbohydrate, not stimulants, so a green mark says nothing either way about caffeine. If you want the ritual without it, a herbal cup such as peppermint has none in it.
Is matcha low FODMAP?
There is no tested serve for matcha in this guide, so the honest answer is that it is not covered here. It deserves its own answer because matcha is not an infusion: the leaf is milled to powder, whisked into the water and drunk, so nothing gets strained out and thrown away. The figure on this page describes a cup that the leaf has left. A matcha latte then adds the milk question on top.
Is green tea or black tea better on a low FODMAP diet?
Neither is a problem at the amounts measured. Green tea reads 0.02 g of fructans in a cup and black tea reads 0.03 g at a weak brew, a gap too small to choose between. What separates them in practice is what goes in. Black tea is usually drunk with milk, and milk is where a mug can pick up a real lactose load, while green tea is generally taken plain.
Can I drink green tea during the elimination phase?
Yes. One cup, 250 ml, is the tested amount and it comes out green, with fructans the only group that registers and only barely. That makes it one of the easier drinks to keep through the strict weeks, when the list of things you can have gets short. Watch the flavoured and bottled kinds, which bring sweeteners the plain leaf does not, and read blends that mix green tea with fruit pieces or chicory root.
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