The SiS Beta Fuel Gels and Chews can also be used for running, preference will come down to the individual with some people relying on gels, whilst others prefer more ‘food’ like textures, such as the chews. So as runners, we need to be consuming both adequate carbohydrate whilst also staying hydrated to perform at our best and hopefully avoid gastrointestinal issues. While gels are easy to carry, some runners prefer to consume carbohydrate drinks, which help to maintain hydration, preventing the need to carry/consume additional drinks, and are often easier on the stomach. In the first study of its kind, we tested feeding athletes 120g of Science in Sport Beta Fuel per hour, singularly, and combined across our patented range of gels, chews and drinks. The previously recommended intake for endurance fuelling was 90g per hour. Rowlands, D. S., Thorburn, M. S., Thorp, R. M., Broadbent, S., & Shi, X. (2008). Effect of graded fructose coingestion with maltodextrin on exogenous 14C-fructose and 13C-glucose oxidation efficiency and high-intensity cycling performance. Journal of Applied Physiology, 104(6), 1709-1719.

The new Beta Fuel Powder solution contains 80 grams of carbohydrate at this 1:0.8 ratio, in a neutral pH formula that maintains the signature isotonic format to minimise gastrointestinal issues. It takes around 500g of carbohydrate to fill your glycogen stores and, at most, this will last you for 60-90 minutes of running at 55-75 percent of your maximal heart rate,' explains leading sports dietician Renee McGregor. 'The faster you go, the sooner your stores will deplete.' The 120g carbohydrate intake can be achieved from our drink, gel or jelly chew, or any combination of the three Science in Sport energy chews deliver 46g of fast carbs in a tasty, convenient gummy bar which enhances output without leaving you feeling full and heavy. Let’s start the night before and ensure your glycogen stores are topped up. After dinner, I drink one serving of Maurten 320 Mix or two servings of Enervit IsoCarb.Orange: Sugar, Water, Glucose Syrup, Fructose Syrup, Gelling Agent (Pectin), Flavouring, Acidity Regulator (Citric Acid), Corn Starch, Glazing Agent (Coconut Oil, Carnauba Wax), Colour (Turmeric Extract). For more intense and longer sessions of 2 – 2.5 hours or more, SiS Beta Fuel is the next generation of endurance fuelling. O’Brien, W. J., & Rowlands, D. S. (2011). Fructose-maltodextrin ratio in a carbohydrate-electrolyte solution differentially affects exogenous carbohydrate oxidation rate, gut comfort, and performance. American Journal of Physiology-Gastrointestinal and Liver Physiology, 300(1), G181-G189.

Be mindful of caffeine as it doesn’t suit everyone,” warns Wiener. “Some people find it makes them dehydrate faster or need to use the toilet more, which is not what you want if you’re taking on a big race or event.” Energy Drinks, Gels Or Chews? Reduced Gastrointestinal Discomfort: Beta Fuel Energy Chews with a 1:0.8 ratio have been found to reduce symptoms of stomach fullness and nausea when compared to the traditional 2:1 ratio, ensuring a more comfortable and enjoyable endurance experience. In the first study of its kind, we tested feeding athletes 120g of Science in Sport Beta Fuel per hour, singularly, and combined across our patented range of gels, chews and drinks. The previously recommended intake for endurance fuelling was 90g per hour. These results have never been seen before and change everything we thought we knew about endurance fuelling guidelines, and the performance potential in elite endurance racing: What I like – and Jamie has said the same – is that it is very handy to eat less for a given amount of energy. As long I was getting one of these chews in along with a bottle of energy drink, I was fine to smash my way through a grim number of intervals. Fuel injected carbs O’Brien, W. J., Stannard, S. R., Clarke, J. A., & Rowlands, D. S. (2013). Fructose–maltodextrin ratio governs exogenous and other CHO oxidation and performance. Medicine & Science in Sports & Exercise, 45(9), 1814-1824.In summary, the Science in Sport Beta Fuel range works by providing these two different forms of carbohydrate in a formula which can be simultaneously absorbed. This is key as the transportation of nutrients across the intestinal wall, which is a rate-limiting factor in carbohydrate oxidation during exercise.

By using a precise balance of maltodextrin and fructose (1:0.8), rather than a single form of carbohydrate, performance improved with Science in Sport Beta Fuel, whilst avoiding any digestion issues. We have shown that athletes are able to tolerate 120 grams of SiS Beta Fuel per hour, significantly higher than the current recommended intake of 90gms per hour, with no stomach upset. This unique range of products are all naturally flavoured and can be used in combination to optimise performance during endurance exercise, giving you a scientifically superior fuel source allowing you to unleash your energy. O’Brien, W. J., Stannard, S. R., Clarke, J. A., & Rowlands, D. S. (2013). Fructose–maltodextrin ratio governs exogenous and other CHO oxidation and performance. Medicine & Science in Sports & Exercise, 45(9), 1814-1824. Consume during prolonged exercise to meet your fuelling requirements. Fuelling strategy – 2-hour event at 80-120g of carbohydrate per hourOur Beta Fuel Dual Source Energy Chews deliver scientifically superior fuel in unique and satisfying chews. Part of an entire world-leading fuelling solution range that includes drinks and gels, they are super easy to consume and deliver 46 grams of carbohydrate to improve and maintain optimum performance. In simple terms, nootropics are substances that can enhance cognitive performance giving you that mental lift you might need, especially at the latter phases of exercise. So, as well as 40 grams carbohydrate at the 1:0.8 ratio of maltodextrin to fructose, the SiS Beta Fuel Gel with Nootropics contains 1 gram of the amino acid L-taurine, 250 milligrams of Cognizin® to enhance information processing and 200 milligrams of caffeine with 200 milligrams of L-theanine, the amino acid which has been shown to increase subjective feelings of alertness, while reducing feelings of ‘jitters’ that you get with caffeine alone. So, which should you try? Yet again, it boils down to personal preference, but here’s a rough guide: Increased Power Output: Athletes using Beta Fuel Energy Chews with a 1:0.8 ratio demonstrated a 3% improvement in mean power output during ten maximal sprint efforts compared to those using the 2:1 ratio. Jeukendrup A.E. Carbohydrate feeding during exercise. Eur. J. Sport Sci. 2008;8:77–86. doi: 10.1080/17461390801918971.

With both gels and chews, it’s important to drink enough water to help your body digest it properly and ensure you stay hydrated. How To Use Energy Supplements Knott, V., de la Salle, S., Choueiry, J., Impey, D., Smith, D., Smith, M., …& Labelle, A. (2015). Neurocognitive effects of acute choline supplementation in low, medium and high performer healthy volunteers. Pharmacology Biochemistry and Behavior, 131, 119-129. Mix one serving (82g) with 500-600ml of water and drink at 20 minute intervals during prolonged endurance exercise to meet your fuelling requirements. Mix with 600ml of water to make SiS Beta Fuel isotonic. We have published groundbreaking science that challenges previous thinking about high carbohydrate & endurance nutrition – and how to fuel winning performances. The combination of maltodextrin and fructose, is the key to SiS Beta Fuel, as the transportation of nutrients across the intestinal wall is a rate limiting factor in carbohydrate oxidation during exercise. How does SiS Beta Fuel work? Though it is important to note, individuals may take time to adapt to consuming this amount of carbohydrate and the optimal amount per hour may also vary slightly depending on the individuals body weight. It is important to practice your nutrition during training to find the optimal amount that works for you.Whether your goal is to improve your endurance capacity, get leaner or build strength, we can support you in achieving your goals.