Feb. 27, 2007 Already recognized as a source of healthful anti-inflammatory and antioxidant compounds, coffee also contains significantly higher levels of soluble dietary fiber than other commonly consumed beverages, scientists in Spain report.
Their study is scheduled for publication in the March 21 issue of ACS' Journal of Agricultural and Food Chemistry, a biweekly journal.
Fulgencio Saura-Calixto and M. Elena Diaz-Rubio point out that coffee is a complex chemical mixture that reportedly contains more than 1,000 different compounds, some of which have been linked to good and bad effects on human health. Scientists have known that coffee beans are rich in soluble dietary fiber (SDF) that can pass into brewed coffee, the researchers added, noting, however, that little research has been done on the topic.
In the new study, researchers used a special technique for measuring dietary fiber in beverages to show that brewed coffee contains a significant amount of SDF — 02.5 percent to 20.0 percent by weight of powdered coffee bean. "The dietary fiber content in brewed coffee is higher than in other common beverages such as wine or orange juice," the study states.
The findings mean that consumption of 1 cup (about 200 milliliters) of coffee per day represents a contribution of up to 1.8 grams of the recommended intake of 20-38 grams of this essential nutrient, the researchers noted.
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