Synopsis

Source of validity: Scientific
Rating (out of 5): 3

Glucose polymers, such as maltodextrin, are used as energy sources in sports nutrition and clinical settings to support the muscles body system, particularly during prolonged or intense exercise. Scientific validation exists for their use, primarily based on their ability to provide rapidly digestible carbohydrates that help maintain blood glucose levels and replenish muscle glycogen stores during and after exercise. Numerous studies have demonstrated that consumption of glucose polymers before or during endurance activities can improve performance and delay fatigue by supplying a steady stream of glucose to muscles, thus supporting sustained muscular activity. Additionally, post-exercise intake of glucose polymers has been shown to accelerate glycogen resynthesis, which is critical for muscle recovery.

However, while the evidence is robust for glucose polymers as energy substrates, their benefit is context-dependent—mainly relevant for athletes or individuals undertaking prolonged physical activity. For the general population or those with sedentary lifestyles, the evidence supporting muscle-specific benefits is limited. Thus, the overall evidence rating is moderate (3/5), reflecting strong support in athletic contexts but not for general muscle health or strength in non-athletic populations. Key references include consensus statements from organizations like the American College of Sports Medicine and research published in peer-reviewed journals such as the Journal of Applied Physiology and Medicine & Science in Sports & Exercise.

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