If you eat a balanced diet, your body can only store enough carbohydrate for around 90-120 minutes of exercise. Standard (Olympic), middle (70.3) and full (140.6) distance triathlons will all take over this amount of time. For training and competition of 2 – 2.5 hours or more, SiS Beta Fuel is the next generation of endurance fuelling. According to SiS’s CEO Stephen Moon: “We have been able to completely change the game when it comes to fuelling endurance athletes. It’s always been a fine art, but we’ve never been closer to perfection than we are now.” Jeukendrup A.E. Carbohydrate feeding during exercise. Eur. J. Sport Sci. 2008; 8:77–86. doi: 10.1080/17461390801918971.

Consume during prolonged exercise to meet your fuelling requirements. Fuelling strategy – 2-hour event at 80-120g of carbohydrate per hour Unfortunately it's not just as simple as going double strength as this may cause the stomach problems that the Beta Fuel is designed to avoid. 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.A ratio of 1:0.8 increases % of ingested CHO that was oxidised (efficiency) from 62% (2:1) to 74% (1:0.8) (O’Brien et al) For the INEOS Grenadiers, SiS BETA Fuel has long been a gamechanger. Originally launched in 2018, it famously powered Chris Froome’s sensational 80km solo ride on Stage 19 of the 2018 Giro d’Italia. At Science in Sport, we have multiple options you can us on their own or in combination with other products to fuel your personal needs. These come in a variety of formats as described below: The unique 1:0.8 ratio of maltodextrin to fructose increases the percentage of ingested carbohydrate that is oxidised from 62% to 74% when compared to a more standard ratio of 2:1. This, specially formulated, ratio also reduces the self-reported symptoms of stomach fullness, especially when compared to a 2:1 ratio.

The new enhanced Beta Fuel formula allows you to increase your carbohydrate intake to around 80-120g per hour as a result of the optimised 1:0.8 maltodextrin and fructose ratio. This will aid your performance by minimising gastrointestinal distress and enabling faster absorption. 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. 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 future of endurance fuelling

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. Some products also contain caffeine, which can help to give a mental and physical boost during the last hours of a race, while others contain electrolytes which help the body to stay hydrated. Runner's World Lab Approved

Through our Performance Solutions team, we have worked closely with elite athletes in the research and development of the new Beta Fuel range to bring you a scientifically superior fuel in a range of formats that allow you to use +17% more carbohydrate (O’Brien et al, 2013). Knowing how much carbohydrate is in a product can be key to your nutrition strategy and we want you to be able to be in control of your nutrition and know exactly what you’re taking in. The bike discipline is arguably the best opportunity to consume nutrition during a triathlon. Your bike allows you to carry your nutrition easily. It’s important to start fuelling before you start to feel fatigued, it’s common to start fuelling within the first 10 minutes of being on the bike.

The new SiS Beta Fuel is a performance solution for any endurance athlete that trains/competes in sessions/events over ~2 hours. About The SiS Beta Fuel Range Naturally, if following a healthy balanced diet our bodies can store enough fuel to last ~ 90 minutes of exercise, anything longer than this and fuelling becomes vital to sustain our energy levels. There are many factors that will affect how much fuel we need but two important factors are exercise duration and intensity.