Wasabi

Why wasabi is rated high

Wasabi is high FODMAP because of sorbitol, a polyol it carries in a concentrated form. The tested serving, 1 tsp (5g), already comes in high, and it is the only serving in the published data, so there is no smaller tested amount listed at a lower level. That is easy to miss with a condiment, because nobody thinks of a condiment as a portion, but the published serving is a condiment-sized one and it is already over the line.

What changes your risk

• The only tested serving is already high 1 tsp (5g) is the single published serving for wasabi and it lands high, so there is no lower rung here to aim for.
• Nothing in the preparation lowers it Sorbitol is not destroyed by heat, chilling or mixing, so stirring wasabi into soy sauce, mayonnaise or a dressing spreads it through the dish rather than reducing it.
• Stacking with other sorbitol sources Sorbitol adds up across a meal. Wasabi alongside stone fruit, blackberries, or sugar-free gum and mints sweetened with sorbitol builds one load out of several small ones.
• What is in the tube Most wasabi sold outside Japan is a blend rather than pure wasabi root, and some pastes carry added sweeteners of their own. Check the ingredient list for sorbitol and the other polyol sweeteners such as mannitol, xylitol, maltitol and isomalt, which are listed by name or by number.
• The rest of the plate at a sushi counter Wasabi rarely arrives alone. The pickled ginger, the sauces and the dressing on the side salad are all worth a look, since it is the total across the meal that matters rather than the condiment on its own.

Swaps

For heat and sharpness without the sorbitol, fresh ginger grated fine, fresh chilli, chilli flakes and cracked black pepper all do the job, and a little rice vinegar lifts them the way wasabi lifts soy sauce. With sushi and sashimi, plain soy sauce with grated ginger and a slice of chilli gets close to the same effect. Note that calling something "wasabi" on the label does not tell you it is different: the tested figure is for wasabi as sold, and the horseradish and mustard blends usually sold under the name are not a known lower option.

How to lower the load

At a sushi counter, ask for the plate without the wasabi rather than trying to leave it on the side, since a paste sitting against rice and fish spreads on contact and a mixed dipping bowl cannot be undone. Keep grated fresh ginger or a jar of chilli flakes with your own soy sauce at home so the heat is built in from the start. If you buy a prepared tube or a powder, check the ingredient list for sorbitol and the other polyol sweeteners before you open it, and treat anything labelled wasabi-flavoured, including peas, crisps, mayonnaise and dressings, as needing the same check.

Common questions

is wasabi low fodmap

No. Wasabi is high FODMAP because of sorbitol, and the tested serving, 1 tsp (5g), already comes in high.

how much wasabi is low fodmap

There is no low serving of wasabi in the published data. The only tested serving, 1 tsp (5g), is high in sorbitol, and no smaller amount has been tested at a lower level.

is wasabi high in sorbitol

Yes. Sorbitol is the subgroup driving its rating, and it is high at 1 tsp (5g).

what can i use instead of wasabi with sushi

Grated fresh ginger, fresh chilli or chilli flakes and cracked black pepper give heat and sharpness without the sorbitol, stirred into plain soy sauce.