Yes. Cooked quinoa is low FODMAP in a normal portion — around 1 cup cooked (about 155 g), according to the Monash University app — and is usually well tolerated within a Low FODMAP diet and by many people managing SIBO. It's best to rinse it before cooking. Always check the exact portion in the Monash app.
01 · PortionSafe portion.
The amount matters more than the food itself. According to the official Monash University app, around 1 cup of cooked quinoa (about 155 g) is the reference portion considered low FODMAP. At that amount, quinoa fits without any problem into the elimination phase of the diet.
The nuance lies in large portions: amounts well above that reference can start to provide galacto-oligosaccharides (GOS) and stop being considered low FODMAP. As with any food, tolerances are individual, so the recommendation is simple: stay around the reference portion and check the exact amount in the Monash app, which is updated with the most recent laboratory data. If you want an overview of how portions work, you can read our guide to Low FODMAP portions.
02 · CompositionWhy it's well tolerated.
Quinoa is a pseudocereal: it's cooked and eaten like a grain, but botanically it's the seed of a plant related to spinach and beetroot. That difference has practical consequences for a sensitive gut:
- It naturally contains no gluten, unlike wheat, barley and rye, which are also rich in fructans (one of the most problematic FODMAPs).
- It's low in fermentable carbohydrates at the reference portion, which reduces the substrate available for the bacterial fermentation that produces gas and bloating.
- It provides complete protein and fibre, which makes it useful as a meal base during the more restrictive phases of the diet, when it's hard to find safe carbs.
One final detail about preparation: the outer layer of the grain contains saponins, natural bitter-tasting compounds that can be irritating for some people. Rinsing the quinoa under the tap in a fine sieve, rubbing it for a few seconds, removes most of those saponins and improves both digestion and flavour.
03 · Quinoa and SIBOQuinoa and SIBO.
Many people managing SIBO include quinoa as part of a structured meal plan, precisely because it's low in fermentable carbohydrates at the reference portion and fits well into a Low FODMAP approach. It isn't a "therapeutic" food: it's simply a carbohydrate that's usually tolerated within a well-designed diet.
As always, the framework matters. The Low FODMAP diet and choosing foods like quinoa are symptom-management tools within a plan supervised by a healthcare professional; they don't replace the diagnosis or treatment of SIBO or IBS. Our article on what SIBO is includes a specific section on quinoa, and in the Low FODMAP weekly menu you can see how it fits into specific meals across the week. If you want a quick reference of what other foods are in, there's our Low FODMAP list in PDF.
04 · FAQFrequently asked questions.
Do you need to rinse quinoa before cooking it?
Yes, it's recommended. The outer layer of the grain contains saponins, natural bitter-tasting compounds that can be irritating for some people. Rinsing the quinoa under the tap in a fine sieve for a few seconds, rubbing it with your hands, removes most of those saponins. Many brands sell it pre-washed, but an extra rinse doesn't hurt.
Does quinoa contain gluten?
No. Quinoa isn't a grain in the botanical sense, but a pseudocereal, and it naturally contains no gluten. That's why it's a common alternative to wheat, barley and rye, which are sources of gluten and fructans. Even so, if you have coeliac disease, it's best to choose gluten-free certified quinoa to rule out cross-contamination during processing.
How much quinoa can I eat on the Low FODMAP diet?
According to the Monash University app, around 1 cup of cooked quinoa (about 155 g) is considered low FODMAP and is the usual reference portion. Very large portions can provide galacto-oligosaccharides (GOS) and stop being low FODMAP. Tolerances are individual, so always check the exact portion in the official Monash app and adjust it to your own case.
This article is for educational and informational purposes only and does not constitute individualised medical or nutritional advice. Tolerance to each food varies between people. Always consult your doctor or a dietitian before making changes to your diet, especially if you have IBS, SIBO or another digestive condition.