DrinksA Guide to Choosing Sports Drinks
We are all aware of the importance of hydration when it comes to sport and improving performance. Exercise scientists and dieticians have invested extensive research into this area. Sports drinks are designed to provide both fluid and carbohydrate that is readily absorbed from the small intestine.
Sports drinks typically contain carbohydrates, electrolytes, flavour and other ingredients.
Carbohydrates provide fuel for the muscles. When carbohydrate is present in the sports drink at a concentration below 8%, it is rapidly absorbed by the body. If the concentration is greater than 8%, water absorption is slowed. Carbohydrates may be added to sports drinks in glucose, glucose polymer, sucrose or fructose form.
Sodium, potassium and sometimes magnesium are added to sports drinks and are referred to as electrolytes. The addition of sodium is said to stimulate the absorption of carbohydrates and water from the small intestine. Most sports drinks contain 10-25mmol/L of sodium which makes you thirstier to encourage you to drink more.
Most athletes only replace half the fluid they lose during sport, so it"s important that sports drinks are tasty to encourage the athlete to drink more.
Some manufacturers of sports drinks also add vitamins, minerals, protein, herbs and sometimes even caffeine. Be wary of big promises.
The best sports drink for you depends on your personal preference. Most manufacturers tend to follow the basic formula, so it really comes down to taste. The more you like the taste of your sports drink, the more you will drink and the more you will replace important fluids.
For more information about sports drinks and to compare sports drinks available in Australia visit http://www.healthycomparisons.com.au/Sports_Drinks.aspx
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