The Science of Dehydration

Excess Sugar in Drinks

How much sugar are you drinking? How many calories are you drinking?

Why some sugar is important

Rapid and effective hydration depends on the active co–transport of glucose and sodium molecules through the small intestine.

The amount of glucose in a rehydration formula is very important. The 2% glucose concentration in Hydralyte Sports has been selected for optimal rehydration, whilst minimising stomach discomfort.

‘No sugar’ electrolyte formulations will not activate the co-transport of glucose and sodium.

Feeling Bloated

Sugary drinks can leave you feeling bloated and uncomfortable. Research has shown that drinks with high sugar concentrations can lead to unpleasant feelings of fullness, and delayed emptying of the stomach.

Burning off excess sugar

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Assumes a 70 kg male undertaking moderate jogging over 1 hour, consuming 600 ml drink. Using 34 kJ energy per minute and 1g sugar = 16 kJ energy (Choice Magazine Sports Drink  Review, 17 August 2008).

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