What It Is
Maltodextrin is a carbohydrate derived from starch - typically corn, rice, or wheat. It's a chain of glucose molecules of medium length, easily digested into glucose for use as energy.
Why Brands Use It
Maltodextrin has a few practical formulation advantages: it's much less sweet than table sugar (sucrose), so drinks can carry more carbohydrate without becoming overpoweringly sweet; it dissolves cleanly in water; and the gastric emptying behaviour is comparable to glucose.
Where You'll See It
Endurance-specific powders like Tailwind, SiS Energy products, High5 Energy Drink, and several others lean on maltodextrin as part or all of their carbohydrate content. The high-carb-per-serve products (Beta Fuel, Maurten Drink Mix 320) typically blend maltodextrin with fructose.
Glucose vs Fructose Pathways
The body has separate transport pathways for glucose-derived carbs (including maltodextrin) and fructose. Combining the two - typical ratios are 2:1 maltodextrin/glucose to fructose - lets athletes absorb more carbohydrate per hour than either alone. This is part of what enables 90+ g/hour fuelling in trained endurance athletes.
Practical Implication
Maltodextrin's presence on a label isn't a feature or a flag - it's just a normal endurance-fuelling ingredient. The more relevant questions are total carb per serve, the carb-type mix (for higher fuelling rates), and how the drink sits in your stomach in practice.
Frequently Asked
Is maltodextrin the same as sugar?
Functionally yes - it digests into glucose. The difference is in formulation: maltodextrin is less sweet, easier to dissolve, and lets brands pack more carbs per ml without overpowering sweetness.
Is maltodextrin healthy?
For active sports use, it's a reasonable carbohydrate source. For sedentary daily consumption, the kilojoules add up like any other sugar.
Which sports drinks use maltodextrin?
Endurance brands like Tailwind, SiS, High5, and Maurten use maltodextrin (often combined with fructose) for higher carb-per-serve formulations.
