My diet:

Dextrose (Glucose)

No E-numberSweetenersOrigin: Plant
Get a personal answer

Pick your family’s diets in the bar above.

Every diet

VeganYes

The FDA identity is corn starch, fully hydrolyzed.

Gluten-freeYes

US corn sugar is made from corn starch. EFSA found wheat-based dextrose unlikely to cause a reaction in coeliac disease.

Full answer ›
HalalYes
KosherYes

Corn-based, so it is kitniyot for Passover.

KetoNo

It is D-glucose, a sugar (21 CFR 184.1857).

Low-FODMAPYes
The short answer
Dextrose is glucose, the sugar crystallized from corn starch. It is vegan and gluten-free, but it is still sugar, so skip it on keto and limit it if you watch blood sugar.
Use in moderation

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

E-numberNone
Comes fromPlant
What it doesSweeteners
Glycemic index—
Daily limitNot set
Also calledDextrose, D-glucose

Rules by country

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

The FDA lists dextrose (corn sugar) as GRAS, with no limit beyond good manufacturing practice. It has no E-number. EFSA and Health Canada have not evaluated it as a food additive; both treat glucose as a sugar. EFSA's nutrition panel did review the wheat-based kind in 2007, for coeliac disease.

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

What is it?

Dextrose is a single glucose molecule. Food makers fully split corn starch, crystallize the glucose, and dry it into a powder that tastes plainly sweet.

Where it comes from: The FDA defines corn sugar as D-glucose made by fully breaking down corn starch with acid or enzymes, then crystallizing it. It is sold dry, either with one molecule of water or without.

Why it’s in food

  • Sweetens drinks, cured meats and candy
  • Helps baked goods brown
  • Carries flavors in dry mixes
  • Holds a little moisture in soft candy

Often found in

Sports drinksCured ham and sausageHard candyCookies and breadSeasoning packetsElectrolyte mixes

Also listed as: Dextrose, D-glucose, Corn sugar, Grape sugar, Dextrose monohydrate, Anhydrous dextrose

Health & gut impact

CaloriesConcern

The FDA lists dextrose as a nutritive sweetener and defines it as D-glucose from corn starch. Nutritive sweeteners are the ones that supply calories.

21 CFR 184.1857; 21 CFR 170.3(o)(21); FDA Substances Added to Food (dextrose)

Coeliac diseaseBenefit

EFSA reviewed wheat-based glucose syrups, including dextrose, and found them unlikely to cause an adverse reaction in coeliac disease when gluten stays under the Codex gluten-free level. The residual gluten and peptides reported to the panel were 0.3 to 1.4 mg per kg.

EFSA NDA Panel (2007), wheat-based glucose syrups including dextrose

Wheat allergyUnder study

EFSA called a severe wheat-allergy reaction unlikely at those protein levels, and called the challenge studies inconclusive. A person with a wheat allergy should still read the rest of the label.

EFSA NDA Panel (2007), wheat-based glucose syrups including dextrose

What can I use instead?

Table sugar

Ratio: Start with the same spoon and taste

Best for: Home baking where a little fructose is fine

Allulose

Ratio: Start with the same spoon and taste

Best for: Sweetness with less blood sugar

Related

More sweeteners:

Common questions

Is dextrose the same as table sugar?

No. Dextrose is glucose alone. Table sugar is glucose joined to fructose.

Is dextrose gluten-free if the starch was wheat?

EFSA found that wheat-based dextrose unlikely to cause a reaction in coeliac disease. The samples it reviewed were far under a gluten-free cutoff.

Is Dextrose safe?

Use in moderation (60/100). The FDA lists dextrose (corn sugar) as GRAS, with no limit beyond good manufacturing practice. It has no E-number. EFSA and Health Canada have not evaluated it as a food additive; both treat glucose as a sugar. EFSA's nutrition panel did review the wheat-based kind in 2007, for coeliac disease.

Is Dextrose vegan?

Yes. The FDA identity is corn starch, fully hydrolyzed.

Is Dextrose gluten-free?

Yes. US corn sugar is made from corn starch. EFSA found wheat-based dextrose unlikely to cause a reaction in coeliac disease.

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Scientific sources & regulatory citations
  • 21 CFR 184.1857 (US FDA)
  • 21 CFR 184.1857; 21 CFR 170.3(o)(21); FDA Substances Added to Food (dextrose)
  • EFSA NDA Panel (2007), wheat-based glucose syrups including dextrose

CAS 50-99-7