Beetroot

Moderate FODMAP

Serving sizes

Beetroot changes rating with portion size. These are the amounts tested in the literature behind our ratings.

½ cup sliced (75g) Moderate
⅞ cup sliced (125g) High

Fructans

Beetroot sits at Moderate FODMAP, thanks to its natural Fructans, so portion size makes all the difference here.

The Fructans in beetroot keep it manageable at a small serving of ½ cup sliced (75g), where it lands at moderate, then tip into high as the portion grows.
Because the level climbs with the amount on your plate, beetroot is one of those veggies where keeping to a modest serving lets you enjoy the earthy, sweet flavor without overloading.

Try using a small amount as a colorful accent in salads or roasted alongside low-FODMAP staples to get that lovely color without going overboard.

Per ½ cup sliced (75g): 0.3g fructans.

Why beetroot is rated moderate

Beetroot carries fructans, and the tested servings tell a short, steep story. At ½ cup sliced (75g) it is already moderate, which means there is no tested amount where beetroot comes back low. Push on to ⅞ cup sliced (125g) and it is high. That is a small climb in absolute terms, which is exactly what makes beetroot awkward: the distance between a portion to respect and a portion that has tipped over is roughly the difference between a scattering of slices and a proper helping. It is a vegetable to measure and to treat as an accent on the plate rather than a component you serve yourself by eye.

What changes your risk

Serving size This is the whole story. ½ cup sliced (75g) is moderate and ⅞ cup sliced (125g) is high, with nothing tested lower. Slicing thin helps the measured amount cover more of the plate, but it does not change what is in it.
Stacking fructans A moderate food is the one most likely to tip a meal on its own, and beetroot rarely arrives alone. Ordinary wheat bread, cabbage and okra all carry fructans too, so a beetroot salad next to a sandwich is two fructan sources in one sitting even before anything else is counted.
Juicing Beetroot juice concentrates several beets into one glass and leaves the fibre behind, so it runs higher than the sliced vegetable. The tested servings above are for sliced beetroot and do not cover juice, or the beetroot poured into a smoothie or a wellness shot.
Canned and pickled jars Fructans are water soluble, so some leach out of the beetroot into the canning or pickling liquid, which is a good reason to drain rather than tip the jar in. There is no separate tested serving for drained pickled beetroot, so the servings above are still what you plan around.
Boiling water versus roasting If you boil beetroot in plenty of water and pour the water away, some water soluble FODMAPs leave with it. Roasting, steaming and microwaving do not do this, because nothing leaves the food. Heat on its own does not destroy fructans.
Hidden onion and garlic Beetroot relishes, chutneys, dips and deli salads are usually built on onion, and beetroot hummus brings chickpeas as well. The jar often carries more fructan risk than the vegetable does.

Swaps

If what you want from beetroot is colour and an earthy sweetness, red bell pepper roasted until it slumps, and carrots roasted until the edges caramelise, both do that job and both are low. Cucumber and green beans handle the salad texture. What you cannot do is solve a fructan problem with another fructan source, so onion of any colour, shallot, leek bulb and ordinary wheat bread on the side are not the answer, and inulin or chicory root fibre added to a salad dressing or a juice blend is the same problem in powdered form.

How to lower the load

Buy small beets rather than large ones, because a single large beetroot sliced up will overshoot ½ cup sliced (75g) without looking like much. Measure the slices into a cup before they go on the salad, not after they have been tossed through everything, and slice them thin so the measured amount spreads across the plate and reads as a proper component. Vacuum packed cooked beetroot is convenient but easy to eat straight from the pack, so portion it out onto the plate and put the rest away. Cafe salads and juice bars are the usual trap: a beetroot and quinoa salad or a beetroot juice is an unmeasured amount by definition, so treat the sliced measure you can control at home as the reliable version.

Common questions

how much beetroot is low fodmap

None of the tested servings comes back low. Beetroot is moderate at ½ cup sliced (75g) and high at ⅞ cup sliced (125g), so ½ cup sliced (75g) is a portion to respect rather than a free pass.

is beetroot high in fructans

Fructans are the subgroup behind beetroot's rating. At ½ cup sliced (75g) the fructan load puts it at moderate, and by ⅞ cup sliced (125g) it is high.

can i eat beetroot on the elimination phase

Beetroot is moderate at its smallest tested serving, so it is not one of the low staples the elimination phase is built on. Reintroductions and how much fits your own diet are worked out with a dietitian.

what about beetroot juice

Juicing concentrates several beets into one glass and leaves the fibre behind, so juice runs higher than sliced beetroot. There is no tested serving for beetroot juice, only for ½ cup sliced (75g) and ⅞ cup sliced (125g) of the sliced vegetable.

Learn more

Informational only, not medical advice. Individual tolerance varies. Talk to a healthcare professional or a dietitian for personal guidance.

References

Fructan and free fructose content of common Australian vegetables and fruit. Muir et al. (2007), J. Agricultural and Food Chemistry 55(16):6619-6627.
Measurement of short-chain carbohydrates in common Australian vegetables and fruits by HPLC. Muir et al. (2009), J. Agricultural and Food Chemistry 57(2):554-565.
Quantification of fructans, galacto-oligosaccharides and other short-chain carbohydrates in processed grains and cereals. Biesiekierski et al. (2011), J. Human Nutrition and Dietetics 24(2):154-176.
Dietary sorbitol and mannitol: food content and distinct absorption patterns. Yao et al. (2014), J. Human Nutrition and Dietetics 27(Suppl 2):263-275.
FODMAPs: food composition, defining cutoff values and international application. Varney et al. (2017), J. Gastroenterology and Hepatology 32(Suppl 1):53-61. Supplies the low, moderate and high cutoffs used on this page.