Bouillon/Stock Cube
Herbs & Spices · Cooking Aids
One stock cube carries 0.4 g of fructans and is rated red, which sounds survivable until you remember what a cube is for. Nobody eats a bouillon cube on its own. You dissolve it into a whole pot, and the pot becomes the soup, the risotto, the gravy and the braise. Spreading the dose out does not reduce it, it only makes it invisible.
Last updated 3 September 2026Serving sizes for bouillon/stock cube
One cube, about 5 g, is the tested amount, and it is rated red.
Tested serving sizes
| Serving | Amount | Main FODMAP | Rating |
|---|---|---|---|
| 1 cube | 5 g | Fructans 0.4 g |
Breakdown for 1 cube
Is bouillon/stock cube low FODMAP?
A stock cube is a dried savoury base, and that base is almost always onion and garlic, which is where 0.4 g of fructans in a 5 g cube comes from. One cube matches the fructan load of a tablespoon of chopped onion, also 0.4 g, and clears the 0.3 g high threshold on its own. The difference is what happens next. Once it dissolves, fructans go wherever the water goes, so the broth, the rice that soaked it up and the sauce reduced from it all carry a share. There is nothing left to lift out.
Bouillon/Stock Cube and IBS: what to know
Dividing the cube does not get you off the hook as cleanly as it sounds. Split between four bowls, the load lands at 0.1 g each, exactly the level at which fructans begin to count, before anything else on the plate is added. Stock is a base rather than an item, so it sits underneath the grain, the sauce and the vegetables at the same meal and stacks with whatever else was borderline. Cubes, powders, pots of concentrate and long-life cartons are all built the same way, and vegetable is not the safer choice over chicken or beef.
Gut-friendly ways to eat bouillon/stock cube
Replace the base, not the recipe. A low FODMAP stock is rated green here and behaves identically in a pot, and homemade is straightforward once you decide what goes in it. For savoury weight without an allium base, a splash of soy sauce or a spoonful of miso paste both rate green and do much of the work a cube was doing. Salted water with bay, thyme and a strip of kombu is thinner but honest. Read cartons as carefully as cubes, because commercial vegetable stock is rated red in this guide too.
Frequently asked questions
Is there a low FODMAP stock cube?
Not as a pressed cube specifically, but low FODMAP stock is a real product and the entry for stock made without onion or garlic is rated green in this guide. Certified brands are in most supermarkets now, usually as a liquid, a paste or a powder. If you cannot find one, water with herbs and a dash of soy sauce carries a dish further than you would expect.
Can I use half a stock cube?
Half a cube halves the fructans, but the full cube sits at 0.4 g, so half of it still lands at 0.2 g. That is above the 0.1 g point where fructans begin to count and two thirds of the way to a high rating. Because the stock then flavours everything in the pan, that reduced amount is still spread through every mouthful of the meal.
Is vegetable stock lower FODMAP than chicken or beef stock?
No. The flavour base is much the same whatever the label says, since onion and garlic do the work in all of them, and commercial chicken stock is rated red alongside the beef and vegetable versions. Vegetable stock often leans on more onion rather than less, because there is no meat carrying the savoury load for it.
How do I make soup taste good without a stock cube?
Layer it. Brown the meat or the vegetables properly first, because colour is most of the flavour a cube is imitating. Add bay, thyme and black pepper early, and something salty and fermented late: a parmesan rind, a spoon of miso or a dash of fish sauce all work. Finish with lemon juice or vinegar, which lifts a flat soup far more reliably than extra salt.
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