Colonic fermentation after ingestion of fructose-containing sports drink

Many commercially available sports drinks contain 5-6% carbohydrates, some of which is fructose. However, a number of studies of abdominal complaints have indicated fructose malabsorption. In the present study, we examined colonic fermentation of a fructose-containing sports drink. Colonic fermentat...

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Published inJournal of sports medicine and physical fitness Vol. 41; no. 1; pp. 121 - 123
Main Authors MITSUI, T, SHIMAOKA, K, KANAO, Y, KONDO, T
Format Journal Article
LanguageEnglish
Published Torino Minerva medica 01.03.2001
Edizioni Minerva Medica
Subjects
Adult
Beverages - adverse effects
Biological and medical sciences
Breath Tests
Colon - metabolism
Exercise Physiology
Feeding. Feeding behavior
Female
Fermentation
Fructose - adverse effects
Fructose - metabolism
Fundamental and applied biological sciences. Psychology
Humans
Hydrogen - analysis
Hydrogen - metabolism
Japan
Male
Metabolism
Physical Fitness
Research Committees
Statistical Analysis
Vertebrates: anatomy and physiology, studies on body, several organs or systems
Japan
Physical exercise
Human
Digestive system
Hydrogen
Gut
Drinking
Fermentation
Metabolism
Athlete
Fructose
Ingestion
Sport
Energy drink
Secondary effect
Carbohydrate
Colon
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Summary:Many commercially available sports drinks contain 5-6% carbohydrates, some of which is fructose. However, a number of studies of abdominal complaints have indicated fructose malabsorption. In the present study, we examined colonic fermentation of a fructose-containing sports drink. Colonic fermentation was determined in normal subjects by measuring breath hydrogen after ingestion of 350 ml sports drink, cow s milk, or green tea with a 200 g rice ball. The incidence of colonic fermentation after ingesting sports drink, milk, and green tea was five (62.5%), six (75%), and none (0%), respectively in eight subjects. Peak increases (ppm) after ingestion of sports drink and milk varied from 0 to 6 (3.1 +/- 0.9) and 0 to 12 (6.5 +/- 1.7), respectively. Although the increase of breath hydrogen was not associated with abdominal discomfort and its effect on exercise is still unclear, we suggest avoiding a large ingestion of fructose-containing sports drink before and during exercise.
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ISSN:0022-4707
1827-1928