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Sugar

Low FODMAP

Tested serving

  • Any typical portion Low

Sugar is Low FODMAP, since table sugar is sucrose, which the gut breaks down and absorbs easily.

  • Table sugar pairs its glucose and fructose one to one as sucrose, so there is no excess fructose left to ferment, and it stays low at any typical portion.

Sweeten coffee or baking as usual; the FODMAP concerns in desserts usually come from other ingredients such as honey, wheat flour, or dried fruit.

Why sugar is rated low

Table sugar comes out low, and it is low at Any typical portion. Sugar is sucrose, which the small intestine splits and absorbs readily, so a spoonful in tea, a scattering over porridge or the sugar in a cake batter is not what upsets a low FODMAP meal. That is the honest answer to the question people usually arrive with: the sweetness itself is fine. What is worth watching is everything sugar travels with, because the sweet things sugar ends up inside are often built on ingredients that are not low.

What changes your risk

  • Typical portion, not unlimited The rating covers Any typical portion, meaning the amounts a person actually uses: spoons in drinks, sugar in a recipe, a sprinkle on fruit. A typical portion is the picture here, so treat sugar as an ordinary ingredient rather than something you can pour without thinking.
  • The company it keeps Sugar rarely arrives alone. A slice of wheat cake, honey-sweetened granola, a biscuit made with ordinary flour or a dessert studded with dried fruit can carry a real FODMAP load from those other ingredients while the sugar itself contributes nothing. Judge the whole plate, not the sweetener.
  • Stacking across a meal Sugar adds nothing to a meal's FODMAP load, but the foods it sweetens can: a fruit-based pudding, a honey-sweetened yoghurt and a wheat-based cake each bring their own, so count those rather than the sugar.
  • Sugar-free is not gentler here Products sold as sugar-free often swap sucrose for sweeteners whose names end in -ol, such as xylitol, maltitol and isomalt, and those are exactly the ingredients a low FODMAP diet steers around. Plain sugar is the more predictable option of the two.
  • Hidden extras in sweet blends Check flavoured or speciality sugars, icing mixes, syrups and sauces for added chicory root fibre or inulin, and check savoury marinades and glazes where sugar sits next to onion and garlic powder. The sugar is not the issue in either case, the additions are.

What else works

If you want a change from white sugar, maple syrup and rice malt syrup both fill the sweetening role and are low FODMAP staples, and brown, raw and caster sugar are the same cane sucrose in a different grain or colour. The sweeteners that look like natural upgrades are the ones to leave alone: honey and agave syrup are both poor swaps on this diet, and so is anything sweetened with sugar alcohols such as xylitol, maltitol or isomalt, including sugar-free gum and mints. For baking, keep the sugar and change the flour instead, using gluten free flour, rice flour, polenta or oats in place of wheat.

How to keep it low

Keep a jar of plain white or brown sugar in the cupboard and use it as your default sweetener, since it needs no label reading at all. Where labels matter is the processed end of the aisle: scan icing mixes, flavoured syrups, sauces and anything marketed as high fibre or reduced sugar for chicory root, inulin or sugar alcohol sweeteners. When ordering out, a coffee with sugar is one of the simplest sweet requests you can make, while the muffin beside it is the thing to ask about. In home baking, a gluten free sponge sweetened with ordinary sugar and topped with strawberries or blueberries gives you dessert without any guesswork.

Common questions

how much sugar can i have on a low fodmap diet

Sugar is low at **Any typical portion**, which covers the spoonfuls you put in drinks and the sugar used in an ordinary recipe. Use it the way you normally would rather than treating it as unlimited.

can i use sugar during the elimination phase

Yes, plain table sugar is low at **Any typical portion** and does not need to be removed during elimination. The sweet foods it goes into may still need checking, since wheat flour, honey and dried fruit are common culprits in baked goods.

is brown sugar low fodmap like white sugar

Brown, raw and caster sugar are all cane sucrose, the same thing as white sugar in a different form, so the same low rating at **Any typical portion** applies. Flavoured or blended sugar products are worth a label check for added inulin or chicory root fibre.

is honey a better choice than sugar for ibs

No. Honey is one of the sweeteners a low FODMAP diet avoids, while plain sugar is low at **Any typical portion**. If you want a syrup instead of granules, maple syrup or rice malt syrup are the better picks.

Try FODMAP Foods

Scan any food with your camera, search every rating in this list, and see your safe portion before you eat.

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

Sugar 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

  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.