I also started using the Beta Fuel chews. The chews come in Orange and Lemon flavours and provide 46g of carbohydrate. In my opinion these are a welcome change, providing a jelly-like texture different to any other SIS product, the lemon flavour being my personal preference. They’re not too chewy and are easy to consume on both the bike and the run, personally my favourite product from the new range! 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. Due to being a very high carbohydrate formula (80g), I built up my use of the Beta Fuel powder gradually. I started off splitting one sachet between two bottles on my bike, to the point where come race day, I was having the full recommended amount of 1 sachet per bottle. This gave me 160g of carbohydrate just in my bottles without even having to consider other nutrition sources yet! While burning fat might sound like a good thing, fat stores don’t release as much energy at the same rate, says Wiener. When you’re outta carbs, you’re likely to hit the proverbial wall, and your performance will suffer.

McGregor recommends consuming 30-60g of carbs per hour for the first three hours of running, increasing to 60-90g of carbs per hour if you’re still going after that. This can be in the form of gels, drinks or solids. A 1:0.8 ratio of maltodextrin to fructose reduces self-reported symptoms of stomach fullness when compared with a ratio of 2:1 Jeukendrup A.E. Carbohydrate feeding during exercise. Eur. J. Sport Sci. 2008;8:77–86. doi: 10.1080/17461390801918971. In short, the all-new Beta Fuel range works by providing two different forms of carbohydrate, maltodextrin and fructose, which can be simultaneously absorbed. This is key as the transportation of nutrients across the intestinal wall is a rate limiting factor in carbohydrate oxidation during exercise. The new formula of Beta Fuel uses an optimised ratio of maltodextrin to fructose at 1:08 (previously 2:1) providing a science-based, complete fuelling solution for triathletes.For a three-hour ride, aiming for 80–120 g of carbohydrate per hour (240-360 grams in total), you could use the SiS Beta Fuel range in the following formats: SiS Beta Fuel Options: However, if you’re new to performance nutrition products, it is important to practice consuming this amount of carbohydrate. Individual requirements will vary depending on body weight and it may take time to adapt. We recommend you practice your nutrition during training to find the optimal amount that works for you. Carbohydrate ingestion in the form of a carbohydrate-electrolyte solution in the first hour of running exercise, in comparison to just consuming water alone can delay time to fatigue by 15 minutes. The new enhanced SiS Beta Fuel formula allows you to increase your carbohydrate intake to around 80-120 grams per hour because of the 1:0.8 maltodextrin and fructose ratio, aiding your performance by minimising gastrointestinal distress and enabling faster absorption.

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. So, which should you try? Yet again, it boils down to personal preference, but here’s a rough guide: Examples of a 2 hour and a 4-hour fuelling strategy using Beta Fuel can be seen below. These are just examples and can be adapted depending on your expected duration, but provide a starting point.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. This would give a total of 245 grams of carbohydrate over the three-hour ride. This provides a varied nutrition solution in different formats, flavours and textures for your ride whilst maintaining the quality of your nutrition so you can train or race at the best of your ability. Our 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. 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 powder also contains sodium which will aid with hydration throughout the ride, whilst the last gel contains nootropics, substances that can enhance cognitive performance giving you that mental lift you might need, especially at the latter phases of exercise.

Beta Fuel works by providing these two different forms of carbohydrate which can be simultaneously absorbed. What’s new? First launched in 2018, the original Science in Sport Beta Fuel is an isotonic product using both maltodextrin and fructose at a ratio of 2:1 to optimise carbohydrate delivery and utilisation during exercise whilst minimising gastrointestinal issues. 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?A ratio of 1:0.8 enhances mean power output during 10 maximal sprint efforts by 3% compared with 2:1 ratio (O’Brien et al) Increase the percentage of ingested carbohydrate oxidised from 62% (2:1 ratio) to 74% (1:0.8 ratio) 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? The new range of Beta Fuel products has an optimised ratio of maltodextrin to fructose. Our previous version used a ratio of 2:1, whilst the new range is 1:0.8. Nootropics are substances that can enhance cognitive performance giving you that mental lift you might need. So, as well as 40 grams carbohydrate, 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.