Is maltodextrin sugar?
Not by label rules, but close to it in your body. Chemically, maltodextrin is a short chain of glucose units: more than a sugar, less than a starch. US labels only count single and double sugars (mono- and disaccharides) as “sugars”, so most of the maltodextrin in a product doesn’t show up in the Total sugars or Added sugars lines.
Once you eat it, enzymes in your gut split those chains into glucose at a high rate. A review of the research calls the idea that maltodextrin raises blood glucose more slowly than glucose “a misconception”. That’s why SweetZero treats it as a hidden sugar.
Why is maltodextrin in so much food?
It’s cheap, neutral-tasting and dissolves easily. Manufacturers use it to add body and texture to sauces, soups and low-fat foods, to carry flavours in seasonings and crisps, to bulk up powders and tabletop sweeteners, and as a fast carbohydrate in sports drinks and gels.
Maltodextrin compared with table sugar
| Property | Maltodextrin | Table sugar |
|---|---|---|
| Made from | Corn, potato, rice or wheat starch | Sugar cane or sugar beet |
| Taste | Barely sweet | Sweet |
| Breaks down into | Glucose | Glucose and fructose |
| Counted as “sugars” on US labels | Mostly not | Yes |
| Energy | 4 kcal per gram | 4 kcal per gram |
Where maltodextrin hides
Foods to check
- Protein powders
- Crisps
- Sports drinks
- Sauces and soups
- Sports gels
- Tabletop sweetener packets
- Instant soups
- Low-fat dressings
Names on the label
- maltodextrin
- maltodextrins
More sugars to know
Common questions
What is maltodextrin made from?
Starch, usually from corn, potato, rice or wheat, broken down with acids or enzymes into short glucose chains. In the US it must have a dextrose equivalent below 20; anything more broken down is sold as glucose syrup.
Is maltodextrin bad for you?
It’s approved as safe to eat. The issue is what it does: it adds fast-digesting carbohydrate that acts like sugar, often in foods that look sugar-free. If you’re cutting sugar or managing blood sugar, count it like sugar.
Is maltodextrin gluten-free?
Usually. Most is made from corn or potato. Wheat-based maltodextrin is so refined that EU rules exempt it from wheat allergen labelling; in the US it must say “wheat” if it contains wheat protein.
Why does a “sugar-free” product contain maltodextrin?
Because label rules count it as a carbohydrate rather than a sugar. It’s often used to bulk out sweeteners or add texture, and a product can contain it and still say little or no sugar.
Does maltodextrin count on a no sugar challenge?
In SweetZero it counts as a hidden sugar. It’s digested into glucose quickly, so treating it like sugar is the safer rule.
Spot it in one scan
Label detective in SweetZero teaches you maltodextrin and 59 other names for sugar, one minute a day. Premium’s AI scanner flags them on any label. Free on iPhone.
Sources
- Hofman DL, van Buul VJ, Brouns FJ. Nutrition, health, and regulatory aspects of digestible maltodextrins. Crit Rev Food Sci Nutr, 2016
- U.S. Code of Federal Regulations — 21 CFR 184.1444 Maltodextrin
- U.S. Code of Federal Regulations — 21 CFR 101.9 Nutrition labeling of food
- U.S. Food & Drug Administration — Added sugars on the Nutrition Facts label
This guide is for general information and isn’t medical advice.