concerning since a large proportion of US children exhibit insufficient hydration. Objective
This study investigated the effects of water intake on urinary markers of hydration and
cognition among preadolescents. Methods A 3-intervention crossover design was used
among 9-to 11-y-olds [n= 75 (43 males, 32 females); 58.2±28.5 BMI percentile]. Participants
maintained their water intake [ad libitum (AL)] or consumed high (2.5 L/d) or low (0.5 L/d) …