Fructose--the simple sugar found in honey, many fruits, and some soft drinks--is one of the principal sweeteners in the Western diet. Not everyone has the ability to absorb fructose properly, however, and now researchers are discovering that it may play an important role in the onset of common gastrointestinal symptoms, such as bloating, cramps, and diarrhea. These symptoms arise when the fructose is allowed to pass through the digestive tract to the colon, where some bacteria can use the sugar as a food source. Unfortunately, in the process, hydrogen gas is liberated.
After the subjects were given 25 grams of fructose, which is about how much is in a 12-ounce can of soda sweetened with high fructose corn syrup, the researchers collected breath samples. The analysis revealed an abnormal level (greater than 20 parts per million) of hydrogen gas in nearly one-half of the subjects. Hydrogen gas would not be present in breath unless fructose was not digested normally. On a subsequent day, the subjects received 50 grams of fructose, and about three-quarters had hydrogen levels greater than 20 parts per million.
"When given levels of fructose commonly consumed in the Western diet, a significant number of
our subjects had both objective and subjective evidence of fructose malabsorption, meaning that
the breath analysis showed hydrogen in excess of 20 parts per million and they had symptoms like gas and diarrhea," said Peter Beyer, M.S., R
'"/>
Contact: Melissa Emick
memick@porternovelli.com
202-973-5892
American College of Gastroenterology
21-Oct-2002