Breakfast
Carrot and Spinach Frittata
25 minEasy
Olive Oil
Condiments · Oils
TLDRLast updated 4 September 2026
Olive oil contains no FODMAPs whatsoever. The tested 2 tablespoons, 30 ml, record zero in all six groups, and the reason is structural rather than lucky: FODMAPs are short-chain carbohydrates, oil is fat, and there is nothing in a bottle of it for them to be dissolved in. That one fact is also what makes garlic-infused oil possible, which is the single most useful trick in low FODMAP cooking.
Last updated 4 September 2026Serving sizes for olive oil
The tested serve is 2 tablespoons, 30 ml, rated green, with zero in every FODMAP group.
2 tablespoonsabout 30 ml
Tested serving sizes
| Serving | Amount | Main FODMAP | Rating |
|---|---|---|---|
| 2 tablespoons | 30 ml | None detected |
Breakdown for 2 tablespoons
0gFructose
0gLactose
0gFructans
0gGOS
0gSorbitol
0gMannitol
2 tablespoonsabout 30 ml
Is olive oil low FODMAP?
Fructans, GOS, lactose, excess fructose, sorbitol and mannitol are all sugars or short chains of them, and every one of them dissolves in water rather than in fat. Pressing olives separates the oil from the watery part of the fruit, and the sugars stay behind with the water. Grade makes no difference to any of this: extra virgin, virgin and refined oils differ in flavour, acidity and how they behave in a hot pan, not in FODMAP content. The only FODMAP question worth asking of a bottle of oil is what has been left floating in it.
Olive Oil and IBS: what to know
Fat is the one route by which an oil can still cause trouble. A heavily fried or very rich meal can set symptoms going through fat load, which is a mechanism with no fermentation in it and no FODMAP figure attached, and it is worth remembering before you write off an ingredient that tested fine for you on its own. This shows up most often with takeaway food, where a lot of oil arrives alongside a large portion. Nothing in the data puts a ceiling on olive oil, so the useful limit is the one your own gut sets on a rich plate.
Gut-friendly ways to eat olive oil
Infuse your own and you get back most of the flavour the diet takes away. Warm the oil gently with garlic cloves or spring onion greens, hold it below a sizzle for a few minutes, then strain the solids out and throw them away: the fructans leave with them, because they never dissolve into the fat in the first place. Shop-bought garlic-infused oil is rated green and does the same job, though it is worth checking the bottle for suspended pieces, since anything solid left in there ends up on your plate. Rosemary, thyme, chilli and lemon peel all infuse the same way.
Recipes with olive oil
Frequently asked questions
Can olive oil trigger IBS symptoms?
Not through FODMAPs, since the tested amount records zero in all six groups. Fat is a separate lever, and some people find a plate swimming in oil brings on cramping or urgency where the same food served dry does not. If that pattern sounds familiar, cut the quantity rather than the ingredient, and look at the total fat across the meal instead of at the bottle.
Is garlic-infused olive oil really low FODMAP?
Yes, and it is rated green here. The fructans in garlic are water-soluble and do not pass into oil, so an oil that has been infused and properly strained carries the aroma without the load, while one small clove of garlic eaten whole holds 0.53 g of fructans and is rated red. Keep the flavour, remove the solids, and the difference is that stark.
Are other cooking oils low FODMAP too?
Yes. Fat is fat as far as FODMAPs are concerned, so coconut oil and sesame oil are both rated green here, and any pure fat sits in the same position, butter and ghee included. The exceptions are flavoured and finishing oils built on onion, garlic or chilli-garlic pastes, where the solids suspended in the bottle are the whole point of the product.
How much olive oil can I cook with?
The data covers 2 tablespoons and stops there, with no FODMAP-based ceiling, so a roasting tray or a dressing for four is not the problem it might feel like. Where oil does decide the outcome is in what you fry in it: an onion softened in olive oil is still an onion, and those pieces go into the dish. The oil is settled, and what you cook in it is the open question.
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