My diet:

Powdered sugar

No E-numberSweetenersOrigin: Plant
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Pick your family’s diets in the bar above.

Every diet

VeganDepends

Powdered cane sugar may have been filtered through bone char. The starch itself is plant.

Gluten-freeDepends

Gluten-free when the starch is corn or tapioca. Wheat starch is not gluten-free.

HalalDepends

Bone-char filtration of the cane sugar is the halal question.

KosherYes
KetoNo

Powdered sugar is ground sucrose.

Low-FODMAPYes
The short answer
Powdered sugar is ground table sugar plus a little starch. It is not keto. Vegans face the same bone-char question as other cane sugar. Gluten-free shoppers have to check which starch kept it flowing.
Use in moderation

Safe in small amounts; may bother some people or raise blood sugar.

E-numberNone
Comes fromPlant
What it doesSweeteners
Glycemic index65
Daily limitNot set
Also calledPowdered sugar, Confectioners sugar

Rules by country

🇺🇸 US FDANot evaluated as an additive
🇪🇺 European UnionNot evaluated as an additive
🇨🇦 Health CanadaNot evaluated as an additive
CaliforniaNo extra rules

Powdered sugar is a sugar food, not an E-number. The gluten question is the starch, not the sugar. A US brand is usually gluten-free because the starch is corn. A wheat-starch brand is not.

Daily limit: Experts haven’t set a number because normal food amounts are far below any level of concern.

What is it?

The grind is what makes icing smooth. Confectioners' sugar, icing sugar and powdered sugar are the same idea. The starch is why a gluten-free baker cannot assume every imported box is safe.

Where it comes from: Powdered sugar is sucrose ground to a dust, with a few percent of starch mixed in so the particles do not cake. In the United States that starch is almost always corn starch. Some brands use wheat starch or tapioca.

Why it’s in food

  • Ices a cake
  • Dusts a doughnut
  • Sweetens a whipped cream
  • Dissolves in a cold drink

Often found in

ButtercreamGlazesDusted dessertsFondantShortbreadCold drinks

Also listed as: Powdered sugar, Confectioners sugar, Confectioner's sugar, Icing sugar, 10x sugar

Health & gut impact

The starch is the gluten riskUnder study

Sugar has no gluten. The anti-caking starch might. Corn starch is gluten-free. Wheat starch is not, unless it is the specially processed kind that has been tested.

Typical starch additions in powdered sugar

Bone char, same as white sugarUnder study

Grinding does not change how the cane sugar was refined. Beet powdered sugar skips bone char.

Cane refining and powdered sugar

What can I use instead?

Sucrose

Ratio: The same sugar before it was ground

Best for: Any recipe that can take crystals

Corn starch

Ratio: The usual anti-caking starch, on its own page

Best for: Thickening

Related

More sweeteners:

Acesulfame Potassium (Ace-K) E950Acesulfame potassium (Ace-K, E950) is a zero-calorie sweetener approved in the US, EU and Canada. EFSA re-checked it in 2025 and raised its daily limit. It's usually paired with sucralose or aspartame to hide a slightly bitter aftertaste.Use in moderationAdvantame E969Advantame (E969) is an extremely intense sweetener related to aspartame. Regulators approve it, and the amount in a food is tiny next to the daily limit. It does not carry aspartame's phenylalanine warning at normal use.Generally safeAgave syrup (Agave nectar)Agave syrup is a plant sweetener that is mostly fructose. It barely moves blood sugar, and it is still sugar: skip it on keto and in a low-FODMAP elimination.Use in moderationAlluloseAllulose is a "rare sugar" that tastes like sugar but has almost no calories and doesn't raise blood sugar. It's keto-friendly and browns like real sugar in baking.Generally safe

Common questions

Is powdered sugar gluten-free?

The sugar is. Check the starch. Corn starch is gluten-free. Wheat starch is not.

What is 10x sugar?

A fine grind of powdered sugar. The number is the grind, not a different sweetener.

Is Powdered sugar safe?

Use in moderation (58/100). Powdered sugar is a sugar food, not an E-number. The gluten question is the starch, not the sugar. A US brand is usually gluten-free because the starch is corn. A wheat-starch brand is not.

Is Powdered sugar vegan?

Depends. Powdered cane sugar may have been filtered through bone char. The starch itself is plant.

Is Powdered sugar gluten-free?

Depends. Gluten-free when the starch is corn or tapioca. Wheat starch is not gluten-free.

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Scientific sources & regulatory citations
  • Typical starch additions in powdered sugar
  • Cane refining and powdered sugar