Science

Are "sports drinks" acidic?

There are all together 3 different types of sports drinks: Isotonic, Hypertonic, Hypotonic.
Sports drinks contain acid which may be harmful to us, especially for our teeth. All acids have an erosive potential but the method of drinking will influence whether or not those acids affect the teeth. Sports drinks should be drank quickly and is advised to use a straw and not be held or swished around the mouth. Spending too much time drinking it or leaving it in your mouth for a long time, can cause erosion. Putting the drink into the refrigerater helps reduce the erosive potential as the acid dissolution constant is temperature dependant.

Isotonic drinks- quickly replaces fluids lost by sweating and supplies a boost of carbohydrate. This drink is the choice for most athletes - middle and long distance running or team sports. Glucose is the body's preferred source of energy therefore it may be appropriate to consume Isotonic drinks.

Hypotonic drinks- quickly replaces fluids lost by sweating. Suitable for athletes who need fluid without the boost of carbohydrate.

Hypertonic drinks- used to supplement daily carbohydrate intake normally after exercise to top up muscle glycogen stores. In ultra distance events, high levels of energy are required and Hypertonic drinks can be taken during exercise to meet the energy requirements. If used during exercise Hypertonic drinks need to be used in conjunction with Isotonic drinks to replace fluids.