Reduced dietary intake induces body fluid hypotonicity via alterations in water and energy metabolism.

ABSTRACT: Maintenance of the body's fluid balance is essential for vital human functions. Although drinking water is widely recommended, the role of dietary intake in body fluids remains unclear. This study investigated whether overnight dietary restriction with adequate water consumption affects body water balance, its regulatory responses, and thermoregulatory and cognitive functions during exercise in a hot environment. Fifteen young adults experienced two conditions: sufficient meal intake (CON) and small dinner with skipped breakfast (RED), both with adequate controlled water consumption. Blood and urine samples, as well as indices of systemic circulation, thermoregulatory responses and cognitive functions, were obtained before, during and after a 60 min moderate-intensity treadmill exercise. R

SUBMITTER: Watanabe H 

PROVIDER: S-EPMC12645557 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature