Radicchio
Serving sizes
Radicchio changes rating with portion size. These are the amounts tested in the literature behind our ratings.
- About 2 cups (75g)
- Larger portions
- Much larger portions
Radicchio is Low FODMAP at about 2 cups (75g), with GOS building as the bowl gets bigger.
- About 2 cups (75g) of radicchio is low.
- GOS builds with the amount, so larger portions are moderate and much larger portions are high.
Enjoy its bitter crunch at about 2 cups (75g) in a mixed salad or lightly grilled as a side.
Why radicchio is rated low
Radicchio is low at about 2 cups (75g), shredded, which is a real salad sized handful. Larger portions move it to moderate and much larger portions to high, as the GOS in the leaves builds with the size of the bowl. Nothing about the leaf changes between those amounts, it is simply the quantity on the plate. Because radicchio shreds into a lot of volume, the low serve looks generous, but a salad built entirely on it can still climb, so treat it as one leaf among several rather than the only thing in the bowl.
What changes your risk
- Serving size About 2 cups (75g), shredded, is low, larger portions are moderate and much larger portions are high. Portioning is the lever that matters most.
- Measuring shredded rather than by the leaf Whole leaves or wedges pack into a bowl completely differently from shredded ones. Shred first, then portion, so what you are counting matches the 2 cups (75g) serve.
- Grilling and roasting Heat does not remove FODMAPs, so a grilled wedge is not a lower FODMAP radicchio. It does shrink, though, and shrinkage is what makes it easy to overshoot: a cooked portion can have started out as considerably more than the low serve. Portion it before it hits the pan.
- Dressings and what it is mixed with Radicchio usually turns up in dressed salads, and dressings, caesar bases and antipasto oils commonly carry onion and garlic. Garlic infused oil with vinegar gives you the same richness without the onion and garlic, as long as no solid garlic is left sitting in it.
- The rest of the meal A low serving is per serving, not per meal. A full serve of radicchio sitting next to several other vegetable servings in the same sitting adds to one combined load, so judge the whole plate.
What else works
Use radicchio the way you would use a strong cheese in a salad: a portion for colour and bitterness, with the rest of the volume coming from somewhere gentler. Lettuce, cucumber, baby spinach and carrot all fill out a bowl, so you can keep the radicchio to about 2 cups (75g) and still end up with a full plate. Close relatives in the chicory family are separate entries with their own serves and do not inherit radicchio's, so do not treat them as interchangeable. Skip anything with inulin or chicory root fibre added to it, which is a common addition to fibre enriched foods and is not a swap for anything.
How to keep it low
Buy a small, firm head with tightly packed leaves and no browning at the cut base, and expect to use only part of it at a time, wrapping the rest and keeping it in the fridge. Shred what you plan to eat and portion about 2 cups (75g) into the bowl before you add anything else, so the serve is settled before the other ingredients go in. If you are grilling it, cut and portion the raw amount first, then cook. Soaking the shredded leaves briefly in cold water and drying them takes some of the bitter edge off without touching the serving. Eating out, radicchio in a mixed salad is usually a scattered accent rather than a bowlful, but a salad built mainly on it is worth asking about, along with what is in the dressing.
Common questions
how much radicchio is low fodmap
About 2 cups (75g), shredded, is the low serving. Larger portions are moderate, so keep it to a normal salad handful rather than a big bowl of it.
when does radicchio become high fodmap
Larger portions are moderate and much larger portions are high, as the GOS builds. A salad that is mostly radicchio is where that happens.
is grilled radicchio ok on a low fodmap diet
Cooking does not lower the FODMAP content, so grilled radicchio follows the same serve as raw. The practical catch is that it shrinks on the grill, so portion about 2 cups (75g), shredded, before cooking rather than after.
can i eat radicchio on the elimination phase
Yes, at about 2 cups (75g), shredded. It works best as one leaf in a mixed salad rather than the whole base of one.
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Where this rating comes from
Radicchio is rated from published lab measurements of its FODMAP content, using the low, moderate and high cutoffs of Varney et al. (2017).
Feedback sent through the FODMAP Foods app has led to changes in this list.
Sources
- 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 high-performance liquid chromatography (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 between healthy individuals and patients with irritable bowel syndrome. 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.
Informational only, not medical advice. Individual tolerance varies. Talk to a healthcare professional or a dietitian for personal guidance.