HyperDrink 90 is a premium powdered sports drink with an ideal composition of carbohydrates and sodium, essential nutrients for improving performance in both long-term training and/or high-intensity competitions. A single 500 ml serving provides 90 g of carbohydrates plus an additional intake of sodium (approximately 208 mg). HyperDrink 90 contains the scientifically optimized blend of carbohydrates, maltodextrin and fructose in a ratio of 1.25:1 (usually 1:0.8). It has been shown that during prolonged exercise, the use of carbohydrates absorbed in the intestine by various transporters (known as GLUT) is the only way to increase the rate of assimilation and oxidation of exogenous carbohydrates above 60 g/hour (Currell, K. et al., MSSE. 2008; Earnest, CP et al., JSCR. 2004). Research indicates that the ideal approach is to combine a glucose source (in our case, maltodextrin) with fructose. Why combine them in a ratio of 1.25:1 (1:0.8) and not the classic 2:1 or another? Because recent research has shown that this ratio allows for maximum oxidation of exogenous carbohydrates, which means that our body obtains maximum energy efficiency from the carbohydrates consumed. This is very important when the carbohydrate intake in a small volume of liquid is very high (90 g/500 ml) to ensure that the vast majority (74% efficiency) of what is ingested will be used for energy production without causing potential stomach/intestinal discomfort (Rowlands, DS et al., SM. 2015). Why use maltodextrin as a glucose source and not another? Because, according to current scientific literature, it seems to be the best source when the goal is high efficiency in the use of exogenous glucose, especially when we want a high carbohydrate intake in small volumes. By using it, we obtain maximum oxidation of exogenous carbohydrates compared to other glucose sources, such as cyclodextrin (Cluster Dextrin®) or isomaltulose (Palatinose®). Cyclodextrin, or highly branched cyclic dextrin (Cluster Dextrin®, the most recognized patent), seems promising from an osmotic point of view for preventing potential intestinal discomfort, but in terms of energy efficiency, there is currently no scientific evidence to prove that it is superior. Isomaltulose (Palatinose®, the most recognized patent), on the one hand, is a source of glucose and fructose, so it is not an exclusive source of glucose. However, studies have shown that its energy efficiency is lower compared to other carbohydrates (41% lower than sucrose, for example) (Achten, J. et al., JN. 2007). This means that part of what is consumed is not used as a source of energy (always in the context of consumption during exercise). Therefore, it does not seem very logical to consume a carbohydrate when part of it will not be used to provide energy, which is exactly what we are looking for when consuming these types of products. In addition to the high energy efficiency, mentioned above, the use of maltodextrin instead of glucose as the main source of glucose is also due to its greater osmotic advantage. As it is a larger molecule, maltodextrin lowers the osmolality of the mixture, minimizing the potential gastrointestinal discomfort that can occur in the case of high carbohydrate consumption during physical exertion (Rowlands, DS et al., SM. 2022). In conclusion, glucose and maltodextrin are similar in terms of energy efficiency, so either could be used. However, maltodextrin is more osmotically favorable (preventing gastrointestinal problems). Furthermore, in terms of organoleptic nuances, maltodextrin contributes very little to the flavor, while glucose is sweeter, which was undesirable in this case. In summary and conclusion regarding the carbohydrates used, in the context of products with a high carbohydrate concentration for consumption during exercise, the most important factor is to maximize the energy efficiency of the consumed exogenous carbohydrates and minimize gastrointestinal problems. According to current scientific evidence, this is only achieved by combining these two carbohydrate sources (maltodextrin/fructose) in the aforementioned ratio of 1.25:1 (better known as 1:0.8) (Rowlands, DS et al., SM. 2022). To complete the formula, we added sodium chloride in the form of sea salt as a source of the mineral sodium (Na). Sodium is the most important electrolyte during sports, as it is the one we lose the most through sweat and is essential for maintaining hydration during physical activity (NDA Panel. EFSA Journal. 2011). In addition, we added it in that specific amount, and not another, because it falls within the range established for maximizing the absorption of water and carbohydrates in the intestinal lumen (Shi, X. et al., IJSNEM. 2010; OBrien, WJ & Rowlands, DS, AJPGLP. 2011). Perfect solubility! The disadvantage of some similar drinks on the market is their solubility, which can be problematic or lead to unstable drinks over time. We were very meticulous in this regard and, after selecting the best raw materials and conducting numerous tests, we obtained a product with perfect solubility. In just a few minutes, a translucent drink is formed that remains completely stable over time. Tasteless! Seeking maximum effectiveness from both an energetic and gastrointestinal point of view, we have developed a highly pure product, so it is tasteless. It has only a slight sweetness from the fructose itself, nothing more. It contains no flavors, preservatives, sweeteners, colorings or other additives