Isotonic drinks

Drinks formulated to be isotonic with normal human body fluids, containing electrolytes and sugars. Athletic performance and recovery from physical exertion are among their claimed benefits. Their formulation must balance palatability with effective fluid and electrolyte delivery, and any performance claims face regulatory scrutiny. Because their osmolality closely matches the body’s, they are absorbed efficiently — the scientific basis behind the sports-drink category. Hypotonic and hypertonic variants serve different hydration strategies. Their electrolyte content distinguishes them from plain soft drinks.