Maltodextrin
Last updated: February 11, 2026
In This Article
Quick Summary
Maltodextrin Empty-calorie filler with glycemic index higher than table sugar. Spikes blood sugar and should be avoided, especially for diabetic dogs. Common in soft chews and supplements where it's used to cut costs. Better alternatives like tapioca exist.
What It Is
Highly processed starch derived from corn, rice, or potato. Used as filler and binder in soft chews and supplements.
Compare to Similar Ingredients
- vs. tapioca starch: Both are refined starches used as cheap fillers. Maltodextrin is more processed and has a higher glycemic index, while tapioca starch is less refined but still lacks nutrition.
- vs. corn starch: Maltodextrin is highly processed starch broken down into shorter chains, while cornstarch is less processed. Both are empty carbs with zero nutritional value used as cheap fillers.
- vs. dried sweet potatoes: Sweet potato is a whole food carbohydrate with fiber, vitamins, and antioxidants. Maltodextrin is a refined, processed starch with zero nutrition. Sweet potato is vastly superior.
Why It's Used in Dog Products
Manufacturers include maltodextrin in dog food, treats, and supplements for several reasons:
- Cheap filler to add bulk
- Binds ingredients in soft chews
- Improves palatability and texture
Quality Considerations
When evaluating maltodextrin in dog products, it's important to understand functional purpose, safety testing, and nutritional contribution. This ingredient's quality and appropriateness can vary significantly based on sourcing, processing, and the specific formula it's used in.
Refined carbohydrate with zero nutritional value. Spikes blood sugar. Pure filler.
Scientific Evidence
Function and Purpose
Primary Function: Easily digestible carbohydrate used as filler, binder, and energy source
Nutritional Profile and Composition
Maltodextrin is a polysaccharide produced from enzymatic hydrolysis of starch (typically corn, rice, or potato). The process breaks starch into shorter glucose chains with varying lengths, creating a powder that dissolves easily and provides rapid-absorbing carbohydrates. Its dextrose equivalent (DE) typically ranges from 3-20, indicating degree of hydrolysis.
Maltodextrin is nearly tasteless, highly soluble, and has minimal sweetness despite being composed of glucose chains. In supplements and treats, it serves as a binder, bulking agent, and quick energy source. It's rapidly digested and absorbed, causing relatively quick blood glucose elevation.
Efficacy and Research
As a functional ingredient, maltodextrin effectively serves as a binder in tablets and soft chews, improves powder flow in manufacturing, and provides easily digestible carbohydrates. However, its nutritional value is limited—it provides calories (4 per gram) without vitamins, minerals, or fiber.
The rapid absorption can be beneficial for working dogs needing quick energy or convalescing animals requiring easily digestible calories. However, for diabetic dogs or those prone to weight gain, maltodextrin's high glycemic impact is problematic. It's essentially a processed starch with nutritional characteristics similar to sugar.
Well-Established - Effective functional ingredient; provides rapid calories without nutrition; consider context of use
Label Guidance
How It Appears on Labels
This ingredient may be listed on pet food labels as:
- maltodextrin
- corn maltodextrin
- rice maltodextrin
- modified food starch
Positioning and Context
Common in treats, soft chews, and powdered supplements; positioning varies widely
Quality Indicators
Signs of quality sourcing and use:
- Source specified (corn, rice, potato)
- Used in small amounts for functional purposes
- Non-GMO certification for corn sources
- Appropriate for high-energy or recovery products
Red Flags
Potential concerns to watch for:
- Listed in top 5 ingredients (suggests filler use)
- In diabetic or weight management products (inappropriate)
- Generic 'maltodextrin' without source
- Primary carbohydrate in treats (suggests low nutritional value)
We never use maltodextrin. It's a refined carb with no nutritional benefit, used to bulk up products cheaply. Whole food alternatives exist.
Frequently Asked Questions
Why is maltodextrin problematic in dog food?
Maltodextrin has a very high glycemic index (85-105, higher than table sugar), causing rapid blood sugar spikes. It provides empty calories with zero nutritional value—just fast-digesting carbohydrates. It's also associated with disrupting gut bacteria and promoting harmful bacterial growth in some studies. In dog food, it's primarily used as a cheap filler and binder, not for any health benefit.
Is maltodextrin safe for diabetic dogs?
No—diabetic dogs should avoid maltodextrin. Its extremely high glycemic index causes rapid blood glucose spikes, making blood sugar management difficult. Even small amounts can interfere with insulin dosing. If your diabetic dog's food or treats contain maltodextrin, consider switching to products without it. Always check ingredient lists on treats and supplements, where maltodextrin commonly hides.
Why is maltodextrin so common in pet supplements?
Maltodextrin is cheap, neutral-tasting, and excellent for manufacturing soft chews and powders. It acts as a filler, binder, and carrier for active ingredients. It also absorbs flavors well, helping mask bitter supplements. While functional for manufacturing, it adds unnecessary carbs. Look for supplements using better alternatives like tapioca starch, vegetable glycerin, or simply fewer fillers overall.
Related Reading
Learn more: Fillers in Dog Supplements: What to Avoid · Dog vs Human Nutrition: Absorption Differences
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