Hypertonic Sports Drink

What's this Science Bite about?

Hypertonic drinks have very high levels of sugar (carbohydrates) for athletes, such as marathon runners who need a large energy boost. As they contain so much sugar they are very high in calories. Hypertonic drinks have a much higher concentration than blood and so the fluids are not easily absorbed. Therefore, they should be drunk alongside an isotonic drink or water to rehydrate your body after a work out.

Always remember to ask your parent or guardian to help you.

What you'll need

Water, fruit squash and some salt.

  • 400ml fruit squash
  • 1 litre water
  • Pinch of salt
  • How to make a Hypertonic Sports Drink

    1. Mix the fruit squash with the water.
      Adding fruit squash to water.

    2. Add a pinch of salt.
      Add some salt to the mixture.

    3. Stir well to make sure the salt dissolves. Place in the fridge to cool down. Pour the drink into an empty sports bottle. Drink during exercise along with an isotonic or hypotonic drink, to give an energy boost.
      Mixing the drink.



    Glasgow Science Centre