Acceptability and effect of carbohydrate-electrolyte solutions on electrolyte homeostasis during field training.
Two lemon-lime flavored 2.5% carbohydrate-electrolyte solutions (CE1 supplemented with Na+, K+, and Mg+; and CE2 supplemented with NA+) were compared to plain water (water) and lemon-lime flavored water placebo (placebo) to evaluate their acceptability and consumption during 8 days of field training in hot weather. Acceptability ratings and consumption of CE2 and the flavored water placebo were similar and greater, respectively, than those for CE1. Average Na+ and K+ intakes, and serum electrolytes levels, were not affected during the 8-day trial. If food intake is adequate, consumption of carbohydrate-electrolyte solutions is apparently unnecessary to maintain electrolyte homeostasis.
Rose
M S
MS
Heat Research Division, U.S. Army Research Institute of Environmental Medicine, Matick, MA.
Szlyk
P C
PC
Francesconi
R P
RP
Lester
L S
LS
Whang
R
R
D002241:Carbohydrates; D003258:Consumer Behavior; D005526:Food, Formulated / Q000032:analysis; D006801:Humans; D008889:Military Personnel; D011188:Potassium / Q000097:blood / Q000652:urine*; D012964:Sodium / Q000097:blood / Q000652:urine*; D014882:Water-Electrolyte Balance
D002241:Carbohydrates; D012964:Sodium; D011188:Potassium