Eggplant (Aubergine)
Vegetables · Nightshades
Eggplant is rated green at half a cup cubed, 75 g, and on most plates it is not the eggplant causing trouble. Behind that serve sit 0.1 g of sorbitol and 0.06 g of fructans, both under the levels where they start to count. Aubergine is a sponge: for oil, and for the garlic-heavy sauces it usually arrives in.
Last updated 3 September 2026Serving sizes for eggplant (aubergine)
Half a cup cubed (75 g) is rated green. Only that one serve has been measured.
Tested serving sizes
| Serving | Amount | Main FODMAP | Rating |
|---|---|---|---|
| 1/2 cup cubed | 75 g | Sorbitol 0.1 g |
Breakdown for 0.5 cups
Is eggplant (aubergine) low FODMAP?
Sorbitol is the group to watch, and at this portion there is not much of it: 0.1 g, half the 0.2 g level at which a polyol begins to count, alongside 0.06 g of fructans and zeros for excess fructose, lactose, GOS and mannitol. That is a comfortable green rather than a borderline one. Only the single point has been tested, though, and a whole roasted eggplant is several times the measured amount, so the sorbitol keeps scaling with the portion even where the rating has nothing more to say.
Eggplant (Aubergine) and IBS: what to know
Eggplant flesh is full of air pockets, so it absorbs whatever it is cooked in, and in most recipes it behaves as a carrier rather than as a vegetable in its own right. A moussaka, a curry or a caponata brings onion and garlic along with it, and one small clove of garlic alone holds 0.53 g of fructans, more than five times the level where fructans start to register. It also drinks a remarkable amount of oil, and very fatty meals are a common IBS trigger in their own right, quite apart from anything fermentable.
Gut-friendly ways to eat eggplant (aubergine)
Cook eggplant so that it needs less oil: brush the cut faces, roast it hot rather than frying it in a shallow pool, or grill it over direct heat until the skin blisters and the inside goes silky. Garlic-infused oil does the flavour job the crushed cloves were doing, since the aroma dissolves into oil and the fructans do not. To stretch a tray without stacking sorbitol, add zucchini and red capsicum rather than a second eggplant.
Frequently asked questions
Can I eat eggplant with IBS?
Yes, at the measured half cup, which is rated green on a modest amount of sorbitol and a trace of fructans. The usual reason an eggplant dish causes symptoms is the company it keeps: onion in the base, garlic in the sauce, and enough oil to make the whole plate heavy. Cooked at home, eggplant is one of the easier vegetables to fit into an elimination-phase menu.
Is baba ganoush low FODMAP?
It depends entirely on the garlic. Baba ganoush is rated green in this guide as a dip of roasted eggplant, tahini, lemon and salt, but restaurant and supermarket versions are usually built on raw garlic, which is rated red at a single small clove. Ask how it was made, or make a batch yourself and use infused oil for the same savoury edge.
Do I need to salt eggplant before cooking it?
Salting draws out water and firms the flesh so that it soaks up less oil, which is worth doing for texture alone. Treat it as a cooking step rather than a FODMAP one: the rating attached to half a cup describes the vegetable as it is, and salting is not a way to move a larger helping into safe territory.
Is eggplant parmigiana or moussaka low FODMAP?
Rarely, as they are normally made. Both stack eggplant with a tomato sauce built on onion and garlic, and both use a lot of it per portion, so the vegetable is the least of the problem. A home version with a low FODMAP tomato sauce, infused oil in place of the cloves, and a helping close to the measured serve works fine.
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