Drinking water instead of caloric beverages may promote weight loss by lowering total energy intake, and possibly also altering metabolism. The authors reviewed data from randomised, controlled crossover studies of various carbohydrate-electrolyte solutions and water to summarise 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
- > Research Database
- > Weight Management
- > SHORT-TERM EFFECTS OF CALORIC BEVERAGES AND DRINKING WATER ON MACRONUT...