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Short‐term effects of caloric beverages and drinking water on macronutrient metabolism
Author(s) -
Stookey Jodi D,
Klein Alexis
Publication year - 2009
Publication title -
the faseb journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.709
H-Index - 277
eISSN - 1530-6860
pISSN - 0892-6638
DOI - 10.1096/fasebj.23.1_supplement.722.9
Subject(s) - respiratory quotient , overweight , postprandial , weight loss , food science , caloric theory , meal , population , carbohydrate metabolism , medicine , obesity , zoology , chemistry , insulin , endocrinology , environmental health , biology
Drinking water instead of caloric beverages may promote weight loss by lowering total energy intake, and possibly also altering metabolism. We reviewed data from randomized, controlled crossover studies of various carbohydrate‐electrolyte solutions and water to summarize what is known about short‐term effects of drinking water and caloric beverages on macronutrient metabolism. Available studies primarily involve healthy, young, normal‐weight, athletes, and address questions related to exercise performance. Despite differences in experimental conditions between studies (i.e. differences in type, volume and timing of test beverages, exposure to heat stress, dehydration, exercise, and food), across studies, drinking water consistently results in lower blood glucose, insulin, and respiratory quotient, and higher free fatty acid levels and fat oxidation, compared to caloric beverages. Studies are needed to confirm whether similar effects hold true for other population groups and study conditions, particularly for sedentary, overweight individuals wanting to burn fat and lose weight. It remains to be determined if drinking water instead of caloric beverages decreases the glycemic response to a meal and increases postprandial fat oxidation in overweight individuals at rest. Research support: Unrestricted grant from Danone