Are Isotonic Drinks Really Hydrating?
An investigation into the hydrating claims of isotonic drinks.
The aim of this study was to investigate the effect of different solutions advertised as ‘hydrating’ on horse red blood cells. The study focused on isotonic drinks and waters. Various isotonic drinks are sold as ‘hydration solutions’ but, given the commercial aspects of marketed products, it is questionable whether the manufacturers create them to be hydrating or whether the drinks are in fact dehydrating in order to make the customer thirstier and want to buy more drinks to quench their thirst.