What is highly branched cyclic dextrin?
Highly branched cyclic dextrin (Cluster Dextrin®) is a modern, highly advanced carbohydrate source derived from amylopectin, a component of starch. Through a special enzymatic process, amylopectin is converted into a cyclic, highly branched structure. The result is a highly soluble, stomach-friendly, and rapidly available carbohydrate that is ideal for athletes and active people.
Compared with conventional carbohydrates such as maltodextrin, dextrose, or waxy maize starch, highly branched cyclic dextrin has a particularly stable molecular structure, resulting in a steady and efficient energy supply - without stomach discomfort, bloating, or sudden blood sugar spikes.
How does highly branched cyclic dextrin work in the body?
1. Fast yet Steady Energy Supply:
Due to its low osmolality (low particle concentration in the solution), highly branched cyclic dextrin is transported from the stomach to the small intestine particularly quickly. This makes energy rapidly available - while glucose absorption takes place evenly, ensuring stable blood sugar levels.
Unlike simple sugars, Cluster Dextrin® does not cause a sudden drop in energy (“crash”) and provides consistent energy over a longer period.
2. Improved Endurance Performance:
Studies show that highly branched cyclic dextrin improves endurance and performance during longer training sessions by ensuring a continuous supply of glucose to the muscles. This helps preserve glycogen stores and delay fatigue.
3. Stomach-Friendly and Highly Tolerable:
Cluster Dextrin® is characterized by exceptionally good stomach tolerance. Even at high concentrations (over 10%) in a drink, it does not cause feelings of fullness, bloating, or stomach cramps. It is therefore perfect for intra-workout drinks and intensive training sessions.
4. Faster Regeneration:
After training, highly branched cyclic dextrin helps rapidly replenish glycogen stores, especially when combined with amino acids or proteins. This shortens recovery time and optimally prepares the muscles for the next exertion.
5. Optimal Nutrient Absorption:
Through its steady energy release, Cluster Dextrin® supports the absorption of other nutrients (e.g., BCAAs, electrolytes, creatine) when they are consumed together in the workout drink.
Benefits of highly branched cyclic dextrin
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Rapidly available yet long-lasting source of energy
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Very well tolerated – no stomach discomfort or bloating
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Stable blood sugar levels without an energy crash
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Improved endurance and training performance
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Faster recovery through efficient glycogen replenishment
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Ideal addition to intra- and post-workout drinks
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Supports the absorption of other nutrients from supplements
Comparison with other carbohydrate sources
| Carbohydrate source | Absorption rate | Tolerance | Impact on blood sugar | Ideal for |
|---|---|---|---|---|
| Dextrose | very fast | medium | high | Post-Workout |
| Maltodextrin | fast | good | high | Post-Workout |
| Waxy maize starch | slow | moderate | low | Long-duration endurance |
| Highly branched cyclic dextrin | balanced, consistent | very high | stable | Intra-/Post-Workout |
Recommended use and dosage
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Before training: 15–25 g (for preparation and energy supply)
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During training: 25–40 g (as an intra-workout drink for sustained energy)
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After training: 30–50 g (for rapid recovery, ideally combined with protein or EAAs)
Cluster Dextrin® can be mixed with water, fruit juice, or other sports nutrition ingredients.
Possible side effects
Highly branched cyclic dextrin is considered very safe and well tolerated. No negative side effects are known, even at higher dosages. Only extremely high intake (>100 g at once) may cause mild bloating or a feeling of fullness.
Conclusion
Highly branched cyclic dextrin (Cluster Dextrin®) is one of the most advanced carbohydrate sources in sports nutrition. It combines rapid availability with a steady release of energy, is extremely gentle on the stomach, and is ideal for intensive training phases. Whether for endurance, strength, or team sports, Cluster Dextrin® provides energy exactly when the body needs it while also supporting recovery, performance, and endurance.
Sources
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Takii H, et al. (2005): The influence of highly branched cyclic dextrin on endurance performance in athletes. J Nutr Sci Vitaminol (Tokyo), 51(2), 135–138.
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Furuyashiki T, et al. (2014): The effects of highly branched cyclic dextrin on gastric emptying and energy supply during exercise. J Int Soc Sports Nutr, 11(1), 36.
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Ivy JL, et al. (2002): Carbohydrate supplementation and endurance performance. Sports Med, 32(7), 404–414.
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Jeukendrup AE. (2011): Nutrition for endurance sports: Marathon, triathlon, and road cycling. J Sports Sci, 29(S1), S91–S99.
