article by Ted Munson
Proper nutrition is often the missing link between training and performance gains. There are a lot of nutrition philosophies out there on the topic, but in this article we’ll highlight the different types of carbohydrates and how they work to fuel your body during different activity intensities.
Carbohydrates travel quite the journey before they finally absorb into the bloodstream via the small intestines. Energy (glucose) can be stored in the liver and muscle (as glycogen) to be used as energy during exercise. Taking on carbohydrate during exercise delivers rapid energy to the working muscles and prolongs your endurance capacity. However, the effects of the energy you receive can differ drastically depending on the type of carbohydrate you use.
Carbohydrates come in a variety of forms. Sugars, including glucose, sucrose and fructose are all carbohydrates that you may have heard of. While they contain similar calories, they are all metabolized differently, affecting performance output. Maltodextrin, an alternative form of carbohydrate, is broken down into glucose, which is the base of SiS GO Energy products.
So what is the difference between sources of carbohydrate?
The carbohydrate source in many energy gels, including SiS GO Isotonic Energy gels, is specifically selected maltodextrin. The particular size of molecule balances the amount of energy delivered versus how quickly it empties from the stomach. This means that you will feel the performance benefits of taking on a isotonic energy gel far more quickly than when a non-isotonic gel is consumed and the risk of upsetting your stomach is much less.
Can We Combine Carbohydrate Sources?
The digestion rate of drinks containing multiple types of carbohydrate is higher than that of drinks with a single carbohydrate source. This means that, for example, drinks containing maltodextrin and fructose are less likely to cause stomach issues and can potentially deliver more energy to the muscles.
The Fat Vs. Carbohydrate Debate
There is a major split as to what should best fuel athletes. Here is a comparison:
Fuel For The Work Required
By “fueling for the work required” an athlete can potentially enhance the way they use carbohydrate and fat as a fuel source during prolonged exercise. Some sessions could be performed without carbohydrate (this may even take the form of having breakfast after and not before morning training) whereas for harder effort sessions and very long endurance sessions, carbohydrate intake is essential for performance. Additionally, athletes should include “train as you race” sessions where a race day nutrition strategy is practiced. This can teach the muscles how to use both fat and carbohydrate as fuels. However, always ensure that harder training sessions are fueled to also train your gut to be able to tolerate the high carbohydrate intakes on race day.
Ted Munson is the Performance Nutritionist at Science in Sport. He comes from a sports science background having worked in elite sport for the past four years. Ted has worked with athletes in football, rugby and tennis, most recently with Hull City FC as a sports scientist. Ted continues to provide sports science support for teams, alongside his MSc in nutrition and physiology, focusing on hydration markers in elite athletes. For more on training and nutrition by SiS Performance Nutritionist Ted Munson, you can him at TrainingPeaks and scienceinsport.com.
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