What is highly branched cyclic dextrin?

Highly branched cyclic dextrin (Cluster Dextrin®) is a modern, 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 , ideal for athletes and active individuals.

Compared to conventional carbohydrates such as maltodextrin, dextrose or waxy maize starch, highly branched cyclic dextrin has a particularly stable molecular structure , which leads to a smooth and efficient energy supply – without stomach upset, bloating or sudden blood sugar spikes.

How does highly branched cyclic dextrin work in the body?

1. Fast but consistent energy supply:
Due to its low osmolality (low particle concentration in the solution), highly branched cyclic dextrin is transported particularly quickly from the stomach to the small intestine. This makes energy available rapidly, while at the same time glucose absorption is even , ensuring stable blood sugar levels .

Unlike simple sugars, Cluster Dextrin® does not cause a sudden energy crash and provides constant energy over a longer period of time.

2. Improved endurance performance:
Studies show that highly branched cyclic dextrin improves endurance and performance during longer training sessions because it ensures a continuous supply of glucose to the muscles . This helps to conserve glycogen stores and delay fatigue .

3. Gentle on the stomach and highly tolerable:
Cluster Dextrin® is characterized by exceptionally good gastric tolerability . Even at high concentrations (over 10%) in drinks, it does not cause bloating, gas, or stomach cramps. It is therefore perfectly suited for intra-workout drinks and intense training sessions.

4. Faster regeneration:
After training, highly branched cyclic dextrin helps to quickly replenish glycogen stores , especially in combination with amino acids or proteins . This shortens recovery time and optimally prepares the muscles for the next exertion.

5. Optimal nutrient absorption:
Due to its even energy release, Cluster Dextrin® supports the absorption of other nutrients (e.g. BCAAs, electrolytes, creatine) when consumed together in a workout drink.

Advantages of highly branched cyclic dextrin

  • Quickly available, but long-lasting energy source

  • Very well tolerated – no stomach upset or bloating.

  • Stable blood sugar levels without energy crashes

  • Improved endurance and training performance

  • Faster regeneration through efficient glycogen replenishment

  • Ideal complement to intra- and post-workout drinks

  • Supports the nutrient absorption of other supplements

Comparison to other carbohydrate sources

carbohydrate source Recording speed compatibility Effect 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-term endurance
Highly branched cyclic dextrin balanced, constant very high stable Intra-/Post-Workout

Recommended use and dosage

  • Before training: 15–25 g (for preparation and energy supply)

  • During training: 25–40 g (as an intra-workout drink for sustained energy)

  • 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 components.

Possible side effects

Highly branched cyclic dextrin is considered very safe and well-tolerated . Even at higher doses, no negative side effects are known. Only with extremely high intake (>100 g at once) can mild bloating or a feeling of fullness occur.

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 energy release , is extremely gentle on the stomach , and is ideal for intensive training phases . Whether for endurance, strength, or team sports – Cluster Dextrin® delivers energy precisely when the body needs it, while simultaneously promoting recovery, performance, and endurance .

Sources

  1. 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.

  2. 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.

  3. Ivy JL, et al. (2002): Carbohydrate supplementation and endurance performance. Sports Med , 32(7), 404–414.

  4. Jeukendrup AE. (2011): Nutrition for endurance sports: Marathon, triathlon, and road cycling. J Sports Sci , 29(S1), S91–S99.