Advanced Nutrition Guides
Sports Drinks with 2:1 Fructose and Caffeine
EnergySource is an advanced range of sports drinks that contain a revolutionary carbohydrate formulation known as 2:1 fructose. Research suggests that you should consume a maximum of 60g carbohydrate per hour from traditional sports drinks.
The recommended intake for new generation Energy Source with 2:1 fructose can be substantially higher, at up to 90 gram per hour. The ingredients in EnergySource help sustain performance during tough endurance events and help maintain hydration by enhancing the absorption of water.
How does 2:1 fructose work?
To understand how 2:1 fructose works, you need to consider how carbohydrate gets from a traditional* energy or sports drink into your muscles where it will be used as fuel. After swallowing your drink, it sits in the stomach for a while before moving down to your intestine. During that journey, the various types of carbohydrate found in the drink are broken down to glucose by your digestive system. Glucose is the main source of energy for the body.
Before glucose can get from the intestine and into your blood stream where it will be carried to the working muscles, it must first pass through the intestine wall. It does this by using what are known as the glucose transporters, which are similar to revolving doors.
But there is a problem. These doors only allow glucose to pass relatively slowly and this results in a bottleneck at the wall of the intestine. It’s thought that this glucose bottleneck is what limits the maximum amount of carbohydrate your body can absorb from a traditional sports drink to around 60 gram per hour.
EnergySource contains a new type of carbohydrate formulation that can overcome the 60g per hour limitation. EnergySource contains two parts maltodextrin to one part fructose.
Maltodextrin: This is a carbohydrate used in many traditional sports drinks. It’s a common type of carbohydrate that’s broken down to glucose by digestion and passes through the wall of the intestine at a maximum rate of 60g per hour.
Fructose (fruit sugar) – is a unique carbohydrate that’s not broken down to glucose by digestion. Fructose passes through the wall of the intestine using a completely different set of doors to glucose (GLUT5). Fructose does not get caught in the glucose bottleneck and it can provide your working muscles with an additional 30g of carbohydrate per hour.
You can see from the diagram (left) how 90 gram of the 2:1 formulation could be absorbed each hour. As carbohydrate is the primary fuel for endurance sport, the more carbohydrate you have available, the faster and further you will be able to go. A number of independent research studies on the HIGH5 Advanced Nutrition Guides based on 2:1 fructose drinks have clearly demonstrated a substantial performance and endurance advantage when compared to traditional sports drink formulations.
To benefit from 2:1 fructose sports drinks with caffeine, you must use them correctly. Our HIGH5 Advanced Nutrition Guides are sports specific, cover every major event distance and provide you with a step-by-step nutrition strategy for your particular body weight.
Benefits of caffeine as a stimulant
The International Society of Sports Nutrition 2010 states that:
- Caffeine is effective for enhancing performance when consumed in moderate dosages (~3-6 mg/kg).
- Caffeine exerts a greater ergogenic effect when consumed in an anhydrous state as compared to tea / coffee. (All HIGH5 products use caffeine anhydrous).
- It has been shown that caffeine can enhance vigilance (focus) during bouts of extended exhaustive exercise.
- Caffeine is ergogenic for sustained maximal endurance exercise, and has been shown to be highly effective for time-trial performance.
- Caffeine supplementation is beneficial for high-intensity exercise, including team sports such as soccer and rugby, both of which are categorized by intermittent activity within a period of prolonged duration.
- The scientific literature does not support caffeine induced diuresis during exercise, or any harmful change in fluid balance that would negatively affect performance. (NB: in short it does not make dehydration worse).