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Xylitol

High FODMAP

Typical portion

  • Any typical portion High

Xylitol is High FODMAP, a sugar-alcohol sweetener that the gut absorbs only partly and ferments.

  • As a polyol, xylitol belongs to the same sugar-alcohol family as sorbitol and mannitol, and it rates high at any typical portion.
  • It shows up in sugar-free gum, mints, candies, and "sugar-free" baked goods, often alongside other polyols, so labels are the place to check.

For sweetening, plain table sugar or maple syrup in normal amounts are low-FODMAP choices.

Why xylitol is rated high

Xylitol is a sugar alcohol, and it rates high at any typical portion. The gut only partly absorbs it, so most of what you swallow travels on to be fermented further down, which is exactly the sorbitol problem: xylitol sits in the same sugar-alcohol family and behaves the same way. The portion ladder here has a single rung, Any typical portion: HIGH, and there is no lower rung to fall back on. That is unusual among foods on this diet, where a smaller helping usually buys you something, and it comes down to the fact that xylitol is a concentrated sweetener rather than a whole food: the amount used to sweeten a piece of gum or a sugar-free biscuit is already doing the work of a lot of sugar. Worth knowing too that sugar alcohols loosen things up and cause wind in quantity even in people with no gut trouble at all, which is why packets carrying them often say so.

What changes your risk

  • Serving size There is no helpful small rung here. Any typical portion is HIGH, so treating xylitol as something to have a little of is not a strategy that works.
  • The "sugar-free" flag Xylitol almost never appears in food you cook from scratch. It turns up in things sold as sugar-free, tooth-friendly or low-carb: gum, mints, breath sweets, hard candies, protein bars, drink powders, chocolate and packaged baked goods. Reading the word sugar-free on the front is the cue to turn the packet over.
  • Where it hides on a label Look for xylitol by name, for birch sugar, for the code E967, and for a sugar alcohols line on the nutrition panel. It is frequently blended with other sugar alcohols such as sorbitol, maltitol and isomalt, so one product can be carrying several at once.
  • Cooking and baking change nothing Heat does not break sugar alcohols down. A sugar-free muffin baked with xylitol carries the same load as the raw batter, and freezing, chilling or blending it makes no difference either.
  • Stacking with other sorbitol sources Because xylitol behaves like sorbitol in the gut, it adds to anything else on your plate carrying sorbitol: avocado, stone fruit such as apricots and plums, and any other sugar-free product sweetened with sorbitol. Sugar-free mints after a meal are the classic way a manageable day tips over.

Swaps

For sweetening tea, coffee, baking and sauces, plain table sugar works and is low FODMAP in normal amounts, as are maple syrup and rice malt syrup. Brown sugar and caster sugar are just table sugar in other forms. What you should not reach for instead are the other sugar alcohols, so maltitol, isomalt and sorbitol are all off the table for the same reason xylitol is, and honey and agave syrup are not the answer either. If the appeal of xylitol was sugar-free gum or mints after a meal, there is no honest low FODMAP version of that product to point you at: most sugar-free gum is built on polyols. Water or peppermint tea does the same job for fresh breath without the load.

How to lower the load

Check the ingredient list on anything marketed as sugar-free, keto, diabetic-friendly or tooth-friendly, and scan for xylitol, birch sugar or E967 as well as the sugar alcohols line on the panel. Chewing gum, mints and cough sweets are the easiest ones to forget because they feel too small to count, and they are often kept in a bag or a car door where you take them without thinking. Xylitol is also common in toothpaste and mouthwash, which are spat out rather than swallowed, so the label there is less of a concern than the packet in your pocket. If you bake, keep ordinary sugar or maple syrup as the sweetener in your own recipes and you sidestep the question entirely.

Common questions

is xylitol low fodmap

No. Xylitol is high FODMAP at any typical portion, with no lower serving to fall back on.

can i have xylitol on the elimination phase

It is not suitable during elimination. The only rung is Any typical portion: HIGH, so there is no small amount that comes in lower. Reintroducing polyols later is something to do with a dietitian.

is xylitol the same as sorbitol

They are not identical, but they are both sugar alcohols and xylitol carries the same sorbitol problem in the gut: only partly absorbed, then fermented. They also stack together, so a sugar-free sweet plus avocado or apricots in the same few hours adds up.

what can i use instead of xylitol for sweetening

Plain table sugar, maple syrup or rice malt syrup in normal amounts all fill the role and are low FODMAP. Avoid swapping to maltitol, isomalt or sorbitol, since those are sugar alcohols too.

is sugar free gum a problem if it has xylitol

Yes. Sugar-free gum is one of the most common sources of xylitol, often alongside sorbitol or maltitol, and it is easy to chew piece after piece without counting it as food.

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Learn more

What Are FODMAPs? A Plain-English Guide Low FODMAP Elimination Phase: A Week-by-Week Guide FODMAP Stacking: Why You Reacted to 'Safe' Foods How to Read Food Labels on Low FODMAP

Where this rating comes from

Xylitol has an estimated rating. Our sources have no direct measurement of it, so its rating is worked out from its ingredients and composition and from the closest measured foods, then checked a second time. The low, moderate and high cutoffs are those of Varney et al. (2017).

Feedback sent through the FODMAP Foods app has led to changes in this list.

Sources

  1. Fructan and free fructose content of common Australian vegetables and fruit. Muir et al. (2007), J. Agricultural and Food Chemistry 55(16):6619-6627.
  2. 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.
  3. 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.
  4. 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.
  5. 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.